While no extra safeguards are in place, U.S. law enforcement are not ignoring the possible significance of tomorrow's date, August 22, a date that marks an important historic event on the Islamic calendar. Internet websites have been full of speculation that it could be a target date for terrorists in commemoration of the return of the 12th imam, a supposed day of reckoning for Shiites. August 22 was rumored by intelligence experts to be a possible date that the London plotters would blow-up passenger planes headed towards the United States, though it is not known if the suspects were Shiite...