"Yusaf Islam, center, formerly known as the rock star Cat Stevens arrives at London's Heathrow airport after being refused entry to America Thursday, Sept. 23, 2004. U.S. officials, who had ordered Islam taken off a London-to-Washington flight on Tuesday, said he was on a security watch list because of suspicions that he was associated with potential terrorists. ""I'm totally shocked,"" Islam told a swarm of reporters as he came through the arrivals area at Heathrow airport. (AP Photo/Adam Butler)"