tickets to europe says the new alert won't change their travel plans. >> what are the chances it's going to happen? minor, so, hey. not going to let them rule me. >> i figure my faith will come upon me as a grand surprise, but it's not going to interfere with my amusements. >> u.s. officials say there are hundreds of thousands of americans in europe at any one time, including tourists, students and business people. rutgers university in new jersey is planning to hold a vigil tonight for tyler clementi, the freshman who committed suicide after a sexual encounter was secretly streamed online. rutgers paid a public tribute to the 18-year-old at the school's homecoming football game, pausing for a moment of silence. clementi's name was also shown there on the stadium's huge scoreboard and the crowd applauded politely after the observation ended. the gifted violinist jumped off the george washington bridge last week and his body was recovered in the hudson river three weeks later.