With America on the brink of its longest government shutdown in history, Jay O'Brien reports on the steps being taken by the Trump administration to partially fund SNAP, the critical federal food assistance that's run out for 42 million people, and Whit Johnson has details on how the shutdown has led many air traffic controllers to call out sick, as they work without pay; Pierre Thomas has the latest on the disturbing new details emerging from the FBI's investigation into the alleged ISIS-