On March 30, 1981, 70 days into his presidency, President Ronald Reagan was shot outside the Washington Hilton Hotel. | American Experience | PBS

Our Emergency Response Team is critical to protective operations. Uniformed Division Sgt. Tech. Chris, a member of the Emergency Response Team K9, discusses the personal benefits of working with our dogs, and the important mission of ERT K9. "My favorite part of being on Emergency Response Team K9 is just the passion and the motivation that I get from wanting to learn more about the canine and training more with our canines..." Interested in joining this elite team? Find out more about the team

In response to the military campaign against Iran, the FBI and Secret Service are on high alert—increasing security in all locations involving the president, the vice president’s residence and the residences of all former presidents. Pierre Thomas reports. https://abcnews.link/h1wntYG | ABC World News Tonight with David Muir