NTSB head says she had to 'beg' to get an Air Canada crash investigator through an hourslong TSA line in Houston

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• Two pilots died in a collision between an Air Canada jet and a fire truck at LaGuardia Airport.
• The NTSB is investigating the crash, but TSA delays hindered an investigator's arrival at LaGuardia.
• Operations at LaGuardia are slowly resuming, with one runway still closed due to the incident.

The National Transportation Safety Board is investigating the Air Canada crash that killed two pilots at LaGuardia on Sunday, but other air travel issues are causing delays.