Scott Pelley asks for "chokehold" answers from NYPD's Bill Bratton

New York Police Commissioner Bill Bratton faced tough questions about officer Daniel Pantaleo's use of an apparent chokehold, in the death of Eric Garner. CBS Evening News anchor Scott Pelley asked Bratton, repeatedly, to clarify if the move is taught or sanctioned by the New York Police Department. Watch the video above to see Bratton's answer.