Alert ##s stop no one from going to Europe , U.S. State Department officials say . ` ` I do n't think anyone should take a trip , '' Airfarewatchdog ' says . Travel agents say they ' ve seen limited impact from the threat so far . Some American tourists already in Europe refuse to be intimidated by the threat .
Alert should scare no one from going to Europe , U.S. State Department officials say . `` I do n't think anyone should cancel a trip , '' Airfarewatchdog president says . Travel agents say they 've seen limited impact from the alert so far . Some American tourists already in Europe refuse to be intimidated by the threat .