Break down of how collision between plane, firetruck unfolded at LaGuardia Airport

Robert Sumwalt, a former chair of the NTSB and a CBS News transportation safety expert, joins "CBS Mornings" to discuss the collision on a LaGuardia Airport runway between a plane and firetruck. Sumwalt explains what the NTSB investigation will look like, how long it could take and discusses air traffic control staffing.