Gary Dorrien takes a critical look at the Obama Presidency, from the left. Adrien Brody and director Tony Kaye discuss their new film, “Detachment,” about a substitute teacher. CNN’s Dr. Sanjay Gupta talks about trying his hand at writing fiction. A History of the World in 100 Objects continues with a look at the Sutton Hoo helmet. Plus, our Gurus of How-to, Al and Larry Ubell, take your calls on home repair!