Last week USA sent helicopters to a compound near Pakistan's capital, and killed Osama Bin Laden, the leader of Al-Qaeda(The Base). Some days after the raid in Osama's hideout, marines found in many computers and CD'S a plan of making a massive attack to trains in USA, dated for 9/11/11 the anniversary of the Twin Towers attack. The plan may not have been bombs, they planned to derail the train/s and make people die.
Maybe now, Al-Qaeda wont make that attack, but USA president, Barrack Obama, warned his citizens to "stay alert" and avoid crowds.
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