Liz Oyer, the former Department of Justice lawyer who was fired last week, apparently because she opposed restoring Mel Gibson's gun rights, had a stark message for Americans during an appearance on "All In With Chris Hayes.

Mr. Gibson lost his right to own guns after his conviction in 2011. Federal law prohibits all those with felony convictions, and those with certain domestic violence misdemeanors, from possessing guns.

There could be no better poster boy than Mel Gibson for the wisdom of "red flag" laws, which allow the state to remove guns from people in a mental health crisis or who are an active threat to the community.