Former President Joe Biden flies commercially from Reagan National Airport and ends up stuck in the same delays as everyone else. On Friday morning, fog triggered an hourlong ground stop and crowds packed the American Airlines commuter gate. Travelers soon noticed Biden because Secret Service agents and local police surrounded him. Keeping a low profile, Biden sat with a newspaper as he awaited his flight to South Carolina for a Democratic Party event. Passengers thanked the former president and shook his hand as they filed past him on the plane. Federal law gives former presidents lifelong Secret Service protection but not special travel.