Delta flight delayed by massive swarm of bees at Houston airport.

A Delta Air Lines flight from Houston to Atlanta was delayed for several hours after a swarm of bees clustered on the plane's wing. The airline attempted to remove the bees, but a beekeeper wasn't allowed to touch the airplane and pest control wasn't permitted to spray the plane. Eventually, the bees were shaken loose when the airplane pushed back from the gate without any passengers aboard. Such swarms are rare but have occurred before.