The alleged gunman who opened fire on the White House Correspondents' Dinner Saturday was immediately subdued, acting Attorney General Todd Blanche said, praising law enforcement's quick response.The big picture: The suspect "barely breached the perimeter" of the event before being taken into custody, said Blanche. He called it "a massive security success story" during a Sunday appearance on CNN's State of the Union."This was law enforcement doing exactly what they trained their whole lives to do," he said.Driving the news: The Secret Service faced criticism for multiple security failures when a gunman attempted to shoot President Trump during a campaign stop in Butler, Pa., in 2024.Just weeks after that attempt, another man tried to assassinate Trump at his Florida golf course.What he's saying: "As far as what happened with him coming down and breaching the perimeter, as you've seen from some videos that have already been released, he was apprehended and subdued feet away from breaking the perimeter, so we were all safe inside, and that's a testament to the Secret Service doing their job," Blanche said on CBS' Face the Nation.Though officials called the response a success, law enforcement can still learn from the incident, John Cohen, a former Homeland Security counter-terrorism official, said on ABC's This Week."It was in a location that not only was accessible to the public, but being a hotel allowed people to enter the location without their bags being searched and without being vetted," he said.