As they watched a Detroit Tigers game, 40,000 fans were unaware that dozens of police, security guards and federal agents were swiftly searching the stadium for a possible bomb after someone phoned in a threat to 911. Authorities made no announcement over the public address system. Ushers said nothing to the crowd. Jason Miller, a suburban Detroit rabbi, left Tuesday's game against the Los Angeles Angels and didn't learn about the threat until the following day. "I immediately started thinking 'What if?'" he said. "What if they had to evacuate?" Read more: http://espn.go.com/mlb/story/_/id/8178710/detroit-tigers-tell-fans-comerica-park-bomb-threat