In the aftermath of Sept. 11, President Bush took charge of what he called a new kind of war. The White House aggressively asserted increased presidential powers. Now, with the Supreme Court's Hamdan decision and Congress pushing for oversight, the tide is shifting.
Jeffrey Rosen, legal affairs editor of the New Republic and law professor at George Washington University.
John Yoo, former lawyer with the Justice Department and current law professor at UC, Berkeley.