Face the Nation with Margaret Brennan : Season 64 Episode 61

The latest on the Parkland, Fla. shooting; Rep. Ted Deutch (D-Fla.); Rep. Brian Mast (R-Fla.); gun violence panel with Austin Eubanks, Michele Gay, Nicole Hockley, John Mina and Andy Parker; Ambassador Frederic Hof; Rachael Bade; David Nakamura;