U.S. concerns about terrorist plots to hijack overseas flights headed for the United States remained intense on Christmas Day, officials said, even as French authorities reported that they had found no evidence that Al Qaeda operatives had planned to commandeer an Air France jetliner headed for Los Angeles. U.S. intelligence officials said they continued to receive current and credible intelligence indicating that such an attack could be in the works – possibly a series of coordinated hijackings – and that Al Qaeda operatives could be targeting any number of overseas cities from which to launch such operations. Full Story