Motives are still unclear in this mass shooting by two people in San Bernardino, California
Guest: Darrel Stephens, Executive Director, Major Cities Chiefs police organization
Mass shootings in America: The new normal?
GOP response to the shootings with calls for prayers
Daily News front page" God isn't fixing this."
Guest: Ernest Muniz, Energy Secretary
U.S. security issues after mass shooting are in question
IAEA: No credible evidence of Iran nuclear activity as of early January
Segment: "Being Human"
Yann Arthus-Bertrand, Director
Preview clip of movie and tomorrow he will join Christiane on the show