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.

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 job of an air traffic controller (ATC) is a challenging and oftentimes stressful one. At the same time, it can be a rewarding and exciting career choice. Here is what you need