LAPD: 'Pre-emptive' arrests made to get terror info (tags)
LOS ANGELES, California (CNN) -- In response to the national terrorism alert, Los Angeles police have made "a number of pre-emptive arrests," a high-ranking LAPD source said Tuesday. Those arrests were made in the past 48 hours and included people who came to authorities' attention after the September 11, 2001, al Qaeda terror attacks in the United States.