In this excerpt from The Closing of the American Border, Edward Alden writes that George Bush came to office as the most pro-immigrant president in modern U.S. history. Yet he presided over a war on terrorism that has been waged through anti-immigrant measures.

Listen to Edward Alden, the Bernard L. Schwartz senior fellow at CFR, discuss his book, The Closing of the American Border: Terrorism, Immigration, and Security Since 9/11, with students as part of CFR's Academic Conference Call Series.

Janet Napolitano, experienced in federal law enforcement and immigration issues, has been selected for secretary of the Department of Homeland Security.

"The war on terror has come home to America. But when did the war on terror morph into a war on illegal immigration? Today it is much harder for a terrorist to enter the United States than it used to be, but according to Edward Alden, it's also much harder for everyone else."

In this Forbes.com op-ed, Edward Alden writes that there were many good reasons to strengthen U.S. border security after 9/11. However, maintaining this country's strength requires the relentless innovation that stems from keeping an open door to the most talented and ambitious people the world has to offer.

In this Globalist op-ed, Edward Alden warns that new regulations on immigration after 9/11 have come with the high price of keeping out the very people that the United States needs to maintain its position in the world.

Since the terrorist attacks of 9/11, travelling to the U.S. has become vastly more difficult and unpleasant. Edward Alden describes where the visa process has gone wrong and how this has impacted America's image abroad.

Listen to Edward Alden, CFR's Bernard L. Schwartz senior fellow, discuss his new book The Closing of the American Border.

CFR's Edward Alden says a flawed U.S. approach to tightening its borders after the 9/11 terrorist attacks has harmed the country's once-admired immigration image.

In his new book, Edward Alden goes behind the scenes to tell the story of the Bush administration's struggle to balance security and openness in the wake of the worst ever attack on U.S. soil. This is a transcript of a discussion of the book and U.S. immigration policy.

Listen to experts discuss U.S. immigration policies, their effects on Latin America and national security concerns, and how immigration reform might occur in the next administration.

This symposium was made possible by the generous support of the Ford Foundation and the W.K. Kellogg Foundation.

Experts discuss the various foreign policy challenges the next U.S. administration will face as part of a three-day symposium during the Republican National Convention in Minneapolis, cosponsored with the University of Minnesota's Hubert H. Humphrey Institute of Public Affairs.

This symposium was underwritten by Chevron Corporation, The Coca-Cola Company, the Stanford Financial Group, and the John S. and James L. Knight Foundation.

The key to a successful foreign policy in Latin America will be focusing on four critical issues -- Cuba, immigration, trade, and the "two lefts."

In his review of Jason Riley's book, Let Them In: The Case for Open Borders, James Kirchick, assistant editor of the New Republic, examines the debate surrounding U.S. immigration policy.

Immigration reform gets scant mention on the U.S. election trail, but experts expect either leading presidential candidate to make policy reforms a priority.

Democratic presidential candidate Barack Obama gave this speech at the National Association of Latino Elected and Appointed Officials (NALEO) Conference in Washington, D.C. on June 28, 2008.

Republican presidential candidate John McCain gave this speech at the National Association of Latino Elected and Appointed Officials (NALEO) Conference in Washington, D.C. on June 28, 2008.

Some degree of anti-immigrant sentiment can usually be found all over the world; but in Western Europe this sentiment is turning into something much more dangerous, says Noah Feldman.