Greats appear in gun reform PSA

NEW YORK -- NFL greats Emmitt Smith, Deion Sanders, Michael Irvin, LaDainian Tomlinson and Marshall Faulk are appearing in a public-service announcement in favor of gun-law reforms.

The spot released Friday is paid for by Mayors Against Illegal Guns, founded by New York City's Michael Bloomberg and Boston's Thomas Menino. A solemn Smith speaks into the camera: "For the children of Sandy Hook Elementary." Then Tomlinson adds, "Demand a plan."

Faulk says later: "It's time for our leaders to do something."

Mayors Against Illegal Guns says on its website that it "advocates for common-sense measures that will close deadly gaps in our gun laws and make sure law enforcement agencies have the tools they need to detect and deter gun trafficking."