US warns of NYC subway terror plot

Federal authorities are warning law enforcement personnel of a possible terror plot against the New York City subway system during the holiday season. An internal memo obtained by The Associated Press said the FBI had received a "plausible but unsubstantiated" report that al-Qaida terrorists may have discussed in late September attacks on the subway system. Anti-terror agencies say they have no specific details to confirm the plot has moved "beyond aspirational planning" but are issuing the alert out of concern that an attack could come during the holiday season, warns the memo, which was dated Tuesday. While federal agencies often issue all sorts of advisory warnings, the language of this one is particularly forceful.