A U.S. Embassy message is reminding Americans attending the royal wedding Friday that London and the rest of Britain continue to face "a full spectrum of threats" from extremist groups and that the terrorism threat remains "severe," according to an online posting.
The so-called warden message, dated Tuesday, leads with a traffic alert and then goes on to say that Britain faces potential threats from groups ranging from "Irish dissident and radical extremist groups to anti-capitalist protesters." It also says that Muslims Against the Crusades, which it described as a "militant jihadist group," has threatened a "'forceful demonstration' with thousands of protesters set to burn the Union Flag, images of the Crown, and images of the bridal couple" during Friday's events. About 5,000 police officers, the message says, will be out in force with "stop and search" powers. It notes that much of central London will be closed to traffic for the event.