Today, the Senate Intelligence Committee will begin questioning Air Force Gen. Michael Hayden, nominated to be director of the Central Intelligence Agency, about the National Security Agency's collection of U.S. citizens' telephone records.

The scrutiny of the NSA is deserved, but the Senate and the American public may be missing a broader and more disturbing development. For the first time since the Civil War, the United States has been designated a military theater of operations. The Department of Defense -- which includes the NSA -- is focusing its vast resources on the homeland. And it is taking an unprecedented role in domestic spying.

It may be legal. But it circumvents three decades of efforts by Congress to restrict government surveillance of Americans under the guise of national security. And it represents a profound shift in the role of the military operating inside the United States. What's at stake here is the erosion of the principle, embedded in the 1878 Posse Comitatus Act, that the U.S. military not be used for domestic law enforcement.

When the administration declared the United States to be a theater of military operations in 2002, it created a U.S. Northern Command, which set up intelligence centers in Colorado and Texas to analyze the domestic threat. But these are not the military's only domestic intelligence efforts. According to the Congressional Research Service, the Pentagon controls "a substantial portion" of U.S. national intelligence assets, the traditional turf of the FBI and CIA.

In 2003, Congress created the job of undersecretary of Defense for intelligence to oversee the department's many intelligence bodies -- including a new entity called Counterintelligence Field Activity, or CIFA.

CIFA was ordered to maintain a "domestic law-enforcement database" on "potential terrorist threats" to U.S. military installations, and it began collecting information on U.S. citizens.

In 2005, a presidential commission suggested that CIFA, set up as a clearinghouse for information, be empowered to conduct domestic investigations into crimes such as treason, espionage and terrorism. Astoundingly, the commission declared that such an expansion of military powers would not require congressional approval; a presidential order and Pentagon directive would suffice. One Defense Department program feeding information to CIFA is TALON (Threat and Local Observation Notice), which is supposed to obtain data from "concerned citizens and military members regarding suspicious incidents" that could herald terrorist attacks. But the military appears to have interpreted its mandate broadly. A TALON report was filed on a protest against "war profiteering" by Halliburton, Newsweek reported. The protesters alleged the defense contractor overcharged for food for U.S. troops in Iraq.

Counterintelligence reports were also filed on New York University's OUTlaw, a decades-old organization of openly gay law students. "The term 'outlaw' is a backhanded way of saying it's all right to commit possible violence," concluded one misguided military investigator in a document obtained last month under the Freedom of Information Act." NBC reported that about four dozen TALON database entries on "suspicious incidents" were not about terrorism but about opposition to the Iraq war and military recruiting.

These misguided military forays into domestic surveillance harken back to Vietnam War-era abuses. This time, they are the result of a much broader intelligence-gathering effort by the military on U.S. soil. President Bush said last week, "We're not mining or trolling through the personal lives of millions of innocent Americans." But a 2004 survey by the General Accounting Office found 199 data-mining operations that collect information ranging from credit-card statements to medical records. The Defense Department had five programs on intelligence and counterterrorism.

The Defense Intelligence Agency, created in 1961 to provide foreign military intelligence, now uses "Verity K2" software to scan U.S. intelligence files and the Internet "to identify foreign terrorists or Americans connected to foreign terrorism activity," and "Inxight Smart Discovery" software to help identify patterns in databases. CIFA has reportedly contracted with Computer Sciences Corp. to buy identity-masking software, which could allow it to create fake websites and monitor legitimate U.S. sites without leaving clues that it had been there. The National Geospatial-Intelligence Agency is collecting data from 133 U.S. cities; intelligence sources told the Los Angeles Times that, when collection is completed, the agency would be able to identify occupants in each house, their nationality and even their political affiliation.

In 2002, the Defense Department launched the granddaddy of all data-mining efforts, Total Information Awareness, to trawl through all government and commercial databases available worldwide. In 2003, concerned about privacy implications, Congress cut its funding. But many of the projects simply transferred to other Defense Department agencies. Two of the most important, the Information Awareness Prototype System and Genoa II, moved to NSA headquarters.

The Pentagon argues that its monitoring of U.S. citizens is legal. "Contrary to popular belief, there is no absolute ban on intelligence" agencies collecting information on Americans or disseminating it, says a memo by Robert Noonan, deputy chief of staff for intelligence. Military intelligence agents can receive any information "from anyone, any time," Noonan wrote.

Throughout U.S. history, we have struggled to balance security concerns with the protection of individual rights, and a thick body of law regulates domestic law enforcement agencies' behavior. Congress should think twice before it lets the behemoth Defense Department into domestic law enforcement.

Commentators across the political spectrum have suggested that a profoundly confrontational clash between western and traditional cultures is taking place. Are modernity & religiosity in fundamental conflict? Are western values - equated with modernity and secularism - incompatible with orthodoxy? Are traditions - based in religion and emphasizing the importance of established practices - antithetical to "progress"? Is the conflict so profound that it has become our new "cold war"? Join our panelists to explore one of the more disturbing challenges facing our world today.

Coit D. Blacker is director, Freeman Spogli Institute for International Studies and Olivier Nomellini Family University Fellow in Undergraduate Education. He also serves as co-chair for Stanford University's International Initiative. Professor Blacker is the author or editor of seven books and monographs, including Hostage to Revolution: Gorbachev and Soviet Security Policy, 1985-91 (1993); Reluctant Warriors: The United States, the Soviet Union and Arms Control (1987); and, with Gloria Duffy, International Arms Control: Issues and Agreements (1984). During the first Clinton administration, Professor Blacker served as Special Assistant to the President for National Security Affairs and Senior Director for Russian, Ukrainian and Eurasian Affairs at the National Security Council. Professor Blacker is a graduate of Occidental College (A.B., Political Science) and the Fletcher School of Law and Diplomacy (M.A., M.A.L.D., Ph.D.).

Amir Eshel is chair and associate professor of German studies and comparative literature, and director of the European Forum at FSI. His research focuses on German culture, comparative literature, and German-Jewish history and culture from the Enlightenment to the present. He is currently working on a book about the poetic figuration of historical narratives, and he is also involved in an interdisciplinary project on urban space in Berlin. At Stanford, he has taught courses on German Jewish literature, literature of the Holocaust, modern German poetry and the contemporary German novel. Before joining the Stanford faculty in 1998 as an assistant professor of German studies, he taught at the Universitaet Hamburg (Germany). He is a member of the American Comparative Literature Association, the Association of Jewish studies, the German Studies Association and the Modern Language Association. In 2002 he received the Award for Distinguished Teaching, from Stanford University's dean of the School of Humanities and Sciences. He received an MA and PhD in German literature, both from the Universitat Hamburg. He speaks Hebrew, German and English, and has a good knowledge of Yiddish and French.

Robert Gregg is the Teresa Hihn Moore Professor in Religious Studies (Emeritus), and serves as Director of the Abbasi Program in Islamic Studies. His scholarship includes a book on philosophies concerning death and grieving in ancient Greek, Roman, and Christian communities; two volumes concerning struggles over orthodoxy and heresy in 4th century Christianity that are focused on the "arch-heretic" Arius and reactions to his teachings; a translation of Athanasius' Greek Life of Saint Antony - the famous account of his activities as one of the first desert monks; and a study of 250 Greek, Hebrew/Aramaic, and Latin inscriptions from the Golan that allow glimpses of interactions between Jews, "pagans," and Christians in the Golan Heights and Syria, 1st-7th centuries CE. Professor Gregg's current research treats several "sacred stories" which appear both in the Bible and in the Qur'an-and examines interpretations of these scripture narratives by Jewish, Christian, and Muslim writers and graphic artists in each of the religions' early centuries.

Paula M. L. Moya is Associate Professor and Vice-Chair of English at Stanford University, where she recently completed a term as Director of the Undergraduate Program of the Center for Comparative Studies in Race and Ethnicity (CCSRE), and Chair of the Comparative Studies in Race and Ethnicity (CSRE) major. Her publications include essays on feminist theory, multicultural pedagogy, and Latina/o and Chicana/o literature and identity. She is the author of Learning from Experience: Minority Identities, Multicultural Struggles (University of California Press, 2002) and coeditor of Reclaiming Identity: Realist Theory and the Predicament of Postmodernism (University of California Press, 2000) and Identity Politics Reconsidered (Palgrave in 2006.) For the past five years, she has been actively involved as a founding organizer and coordinating team member of The Future of Minority Studies research project (FMS), an inter-institutional, interdisciplinary, and multigenerational research project facilitating focused and productive discussions about the democratizing role of minority identity and participation in a multicultural society. For more information, visit www.fmsproject.cornell.edu.

Raena D. Saddler grew up in St. Louis and attended high school at Colorado Academy in Denver. She is currently a Junior double-majoring in Religious Studies (with a focus on Christianity) and Psychology on the "Health and Development" specialization track (focusing both on adolescent development and clinical psychology). She is also minoring in International Relations with a focus on aid to lesser developed countries--Africa in particular. Raena is planning to spend next fall semester in Rome and come back to work on an honors paper for Religious Studies. She enjoys traveling abroad, and spends a few weeks every summer doing aid-work in Mozambique, Africa. Since coming to Stanford, Raena has been volunteering for three years at Menlo Park Presbyterian Church (MPPC) working with junior high and high school girls as a youth leader and small group leader. In addition to that, she is the head coach for the Menlo-Atherton High School JV women's lacrosse team. Outside of coaching she loves to be around kids and babysits for several families in the area. When she isn't going to class, babysitting, or coaching, she spends the rest of her time with her closest friends and boyfriend of two years.She is very passionate about youth leadership and social justice, and hopes to work for an international aid organization in the future.

Jointly sponsored by the Stanford International Initiative and the Undergraduate Admissions Office.

As part of its ongoing series of "Studies of the Walter H. Shorenstein Asia-Pacific Research Center", Shorenstein APARC announces two major new titles on the Chinese Cultural Revolution and the genealogy, politics, and legacy of ethnic nationalism in Korea.

The first, The Chinese Cultural Revolution as History, edited by Joseph W. Esherick, Paul G. Pickowicz, and Andrew G. Walder, shows how the Cultural Revolution was experienced by ordinary Chinese at the base of urban and rural society. The second title, by Shorenstein APARC director Gi-Wook Shin, examines the blood-based notion of Korean identity that has come to override other forms of identity in the modern era.

Both books are available for purchase from the Stanford University Press website, through the links given below.

The Middle East seems to occupy all the attention of our foreign-policymakers these days. But there are other parts of this globe that are probably more important, and potentially no less dangerous.

One of these is the Taiwan Strait. That narrow passage of water separates China from Taiwan, in Chinese minds a renegade province that must eventually be returned to its control.

The Chinese communist leadership dreads the prospect that Taiwan's democratically elected government might make the island's de facto independence a legal reality. China's heated military buildup in recent years is largely focused on creating the muscle to intimidate Taiwan and to seize the island if that fails.

A war across the Taiwan Strait makes the American top-five list of security dangers. The U.S. commitment to defend Taiwan is ambiguous, but it is not hard to imagine us being drawn into a conflict. And a war in the strait could easily expand to include Japan.

That is why the mayor of Taipei, Taiwan's capital city, got such a rousing welcome last week in Washington. Ma Ying-Jeou, or Mayor Ma as he is popularly known, does not threaten to upset the apple cart of cross-strait relations by pushing Chinese buttons with talk of independence, as the Taiwanese government loves to do.

Sitting down with Ma for breakfast as he made his way home to Taiwan, I could see why he was received with open arms at senior levels of the Bush administration. Ma, the leader of the opposition Kuomintang (KMT) party, is the front-runner in polls to win the 2008 presidential elections. He is articulate, a Harvard Law School graduate with movie-star looks and a reassuring message for Americans.

"We support maintenance of the status quo, which is also U.S. policy,'' he told me.

A KMT-led government would not waver from the "Five Nos,'' a pledge made by President Chen Shui-bian not to take steps toward a declaration of independence. He offers in addition a program of ``Five Dos'' should it return to power.

First, the KMT hopes to resume negotiations with the mainland, based on a 1992 agreement that while there is one China, there are different interpretations of what that means. Second, it will try to reach a peace agreement, lasting from 30 to 50 years. Third, the KMT would expand the already massive economic ties between Taiwan and the mainland into a possible cross-strait common market. Fourth, the KMT would try to create a formula to allow Taiwan to participate in international affairs, including global organizations, short of being an independent state. Last, it would expand cross-strait cultural and education exchanges.

Ma downplays the threat from Beijing these days. "Their goal is no trouble,'' he told me. "They are not interested in unification right now.'' But, he said, the Chinese do worry about "the further drifting away of Taiwan.'' That drift, he fears, could inadvertently force a conflict that might drag in the United States.

That charge is aimed at the government in Taipei. And it is a concern shared by U.S. officials who are visibly unhappy these days with Chen. The warm reception for Ma was intended to send that message to Taipei -- and also to Beijing, ahead of the visit next month of Chinese leader Hu Jintao.

Reassuring as Ma's words may be, there are reasons to be cautious about his message and his prospects.

Taiwanese nationalism may rattle the status quo, but so does China's military buildup. As does the failure of Taiwan to adopt a significant U.S. defense package, offered five years ago, to counter that buildup. The KMT blames the current government for this impasse but the party, which now controls the legislature, has blocked passage of the budget.

Deepening economic ties with China are a market reality, as Taiwan's electronics industry shifts production to low-wage China. But ultimately that could make them another Hong Kong, a satellite of Beijing that must bend to its political will.

Taiwanese are deeply divided. The KMT, the party of mainlanders who fled to the island after the communist victory in 1949, ruled Taiwan for decades as the exiled government of China. But democracy, which came in the 1990s, brought to power native Taiwanese who want to preserve their separate identity.

Ma may prove to be a political leader who plays better in Washington than back home. But if Taiwanese embrace his vision of the status quo at the ballot box, all the better. Ultimately, his mandate must come from Taiwanese, not Americans.