For those who follow the gyrations of American politics, the week is not complete until David Brooks is heard from. After completing his two columns a week for The New York Times, Brooks takes to the airwaves every Friday, on National Public Radio's All Things Considered, and on PBS television's The News Hour. On the air, as in print, he brings historical perspective, a bracing candor and gentle humor to his analysis of the week's events. Brooks was a senior at the University of Chicago when a piece he'd written, lampooning conservative icon William F. Buckley, Jr., caught the eye of...