The Federal Aviation Administration (FAA) is investigating a close encounter between Marine One, the presidential helicopter, and a passenger jet at Reagan Washington National Airport on Wednesday. The FAA is examining why the passenger aircraft was cleared for takeoff while Marine One was operating in the vicinity. Details regarding the specifics of the incident and the potential for collision remain scarce. Initial reports suggest the passenger jet was permitted to take off despite the proximity of the presidential helicopter. The investigation will focus on air traffic control procedures and communication protocols to determine if any errors occurred. This incident raises concerns about aviation safety and the protocols surrounding presidential flights. Further updates are expected as the FAA completes its inquiry.