NBA mandates metal detectors
http://sports.espn.go.com/chicago/nba/news/story?id=6465985
CHICAGO -- In the aftermath of the death of Osama bin Laden, all patrons attending Game 1 of the Chicago Bulls' Eastern Conference semifinal series against the Atlanta Hawks were subject to metal detectors entering the United Center on Monday. Fans were checked with a metal detector wand as they entered the arena, with the State Department warning of an "enhanced potential for anti-American violence."