Sen. Chris Murphy, D-Conn., said Thursday it’s “ridiculous” to argue that people’s Fifth Amendment rights would be violated by legislation barring suspected terrorists from purchasing firearms, and said that argument is a “red herring.”

A shooting at a gay nightclub in Orlando, Fla., which claimed the lives of 49 people plus the shooter, has renewed support in Congress for legislation that would bar people who appear on the government’s terrorist watch list from purchasing a firearm. The watch list is a secretive database established in 2003 under the Bush administration, and includes people suspected, but not convicted, of terrorism.