A Pakistani-American accused of driving a car bomb into New York's Times Square will be charged with an act of terrorism, U.S. authorities said on Tuesday as Pakistan arrested several relatives of the man. Faisal Shahzad, a naturalized U.S. citizen born in Pakistan, told authorities he acted alone in Saturday's failed bombing, but skeptical investigators are looking into his recent trip to Pakistan, a U.S. law enforcement source said.Shahzad, 30, was arrested late on Monday night after he was taken off an Emirates airline plane that was about to take off for Dubai. Hours later, several relatives and a...