More on the Laguardia crash from the NTSB and ASDE-X; a near-collision at LAX involving a Frontier flight and two trucks; a United Airlines plane struck two de-icing trucks; the FAA requested funding for 2,300 controller trainees; a Navy MQ-4C Triton reconnaissance drone went missing; and air taxis are coming to Utah. Aviation News Seconds before LaGuardia crash, controller cleared the fire truck to cross the runway, NTSB says The NTSB has determined that a LaGuardia Airport air traffic controller cleared the fire truck to cross a runway 12 seconds before the Air Canada flight touched down. The two pilots were killed in the resulting collision. The NTSB has yet to identify how this was allowed to happen. Unanswered questions: Are two overnight duty controllers enough? Why didn’t a runway warning system sound an alert? Who was coordinating air and ground traffic? Did the fire truck hear the controller’s last-second pleas to stop? LaGuardia has an advanced surface surveillance system...