In a surprising mishap, a U.S. Secret Service agent assigned to protect former First Lady Jill Biden accidentally shot himself in the leg at Philadelphia International Airport on Friday morning. The incident happened shortly before 9 a.m. when the agent, traveling in an unmarked vehicle, experienced a 'negligent discharge' of his firearm, as confirmed by Secret Service spokesman Anthony Guglielmi. Luckily, Biden was not in the area at the time of the incident. Other law enforcement officials quickly arrived to assist, and the injured agent was promptly taken to a local hospital. He is now in stable condition, and airport operations remain unaffected, according to Heather Redfern from the city's Department of Aviation.