KAKU ON CLOSE CALL WITH ASTEROID

Earth will have a close encounter today with a massive asteroid nicknamed "The Rock" by NASA, which first noticed it three years ago. "The Rock" is the largest such object to pass so close to Earth since 2004. CBS News science and futurist contributor Dr. Michio Kaku joins ‘CBS This Morning’ to discuss how the asteroid will not affect us now but underscores the looming dangers of other space objects headed our way. WATCH NOW!