"Obviously, that will be fluid," John Potter, President and CEO of the Metropolitan Washington Airports Authority, said at a press conference early Thursday morning.Start the day smarter. Get all the news you need in your inbox each morning.

While aircraft have become increasingly safer in flight, runway incursions remain a critical and under-addressed danger. These dangerous events arise from a complex interplay of human, organizational, and technological factors among three key players: Air traffic controllers and the crews of converging aircrafts.