A Federal Aviation Administration employee working at Ronald Reagan Washington National Airport outside of Washington, D.C., was recently charged over a workplace altercation, authorities said.

In the aftermath of the tragic midair collision over the Potomac River in Washington, D.C. in January, authorities have been working hard to making operations at Ronald Reagan Washington National Airport safer.

The Federal Aviation Administration also said it is evaluating aircraft arrival rates at Reagan National Airport, whose main runway is the busiest in the U.S.