U.S. Has Flight Numbers of Specific Hijack Targets Intelligence gathered by Homeland Security and Defense Department officials that caused terror alert levels to be elevated on Sunday included specific airline flight numbers targeted for hijacking by al Qaeda as well as the names of airports involved in the plot. "U.S. intelligence agencies had gathered detailed information about the plan, in which they said al Qaeda operatives would hijack foreign airliners and fly them into targets in the United States," reported NBC News late Tuesday. "In some instances, the intelligence is so detailed as to include specific flight numbers," the network...