The Pulse on FOX

Included: how U.S. air defenses reacted to the Sept. 11 attacks and how they have been modified; behind the scenes with Kelly Clarkson and Justin Guarini as they prepare for the finale of “American Idol.” Also: Bill O'Reilly interviews Lauren Anderson, a spokesperson for People for the Ethical Treatment of Animals. Anderson was the winner on the May 2002 Fox special “Girl Next Door: The Search for a Playboy Centerfold.”