our privacy. jobs will still be involved in major decisions and tim cook will take over the day-to-day operations. jobs is a pancreatic cancer survivor, took a leave of absence over health concerns in 2009 to get a liver transplant. shocking descriptions from the video surveillance the tucson shootings emerging. images of what it means to investigators. we ll talk about that straight ahead. also, measuring the political mood of america. richard louie lo richard lui looking into that. who is happier. democrats or republicans now that a new congress is at work, and the one thing they agree on. we ll tell you, chris. thank you, richard. on this january 17th, martin luther king day, we want to wish you a very happy 47th birthday to first lady michelle obama. the first couple will celebrate participating in a service event in the washington, d.c. area that will be happening just about an hour from now. happy birthday.