The FAA is increasing air traffic control staffing at Ronald Reagan Washington National Airport near Washington, D.C., following a fatal January midair collision that killed 67 people.

Air traffic controllers at Washington's Ronald Reagan National Airport will be offered crisis counseling and additional supervision after a fight in the tower and another alarming near miss two months after a midair collision between a passenger jet and an Army helicopter killed 67 people.

The arrest of an F.A.A. employee on assault and battery charges comes as flight operations at the airport have been under scrutiny since a passenger jet and an Army helicopter collided in January.