u.k., this after five men were arrested early this morning for an alleged threat against the pope. greg burke is live in london. greg? >> reporter: hi, jon. you know, there have been a lot of distractions in the lead-up to this trip. there's some demonstrators here in westminster, some saying the pope is the antichrist, but really there's been no distraction like the one that hit at noon locally today, just about fife and a half hours ago, and that was a potential terrorist plot against the pope. scotland yard saying they had arrested five men. the pope was talking with children, it was dedicated to catholic education, so both teachers and students, and his schedule continued just as it was supposed to. at that time these five men were being questioned, also a search was going on in london. nothing turned up so far hazardous, it appears now, but the police are taking this very seriously. the vatican for its part says the pope is calm and will continue as he has.