NEW YORK (AP) — The FBI announced Friday it has assigned its Joint Terrorism Task Force to lead a probe of laser attacks on the cockpits of two planes approaching LaGuardia Airport this week, inviting help from the public as well to fight a growing threat against the nation's air transportation. "The FBI is asking anyone with information about any of these dangerous laser incidents to pick up the phone and call us," George Venizelos, head of the FBI's New York office, said in a release. "Our paramount concern is the safety of aircraft passengers and crew."