Sign in to NFL Now to watch the best of the NFL, personalized for you

Scenes of Syrian massacre add to pressure on U.S. to act

CBSTV Videos 1:44 mins

Videos of the aftermath of a suspected gas attack by the Syrian government are impossible to verify. President Obama has ruled out sending in troops, and strikes or a no-fly zone could cost $1 billion a month. Margaret Brennan reports.

View Comments (0)