Pierre Gemaye, a prominent anti-Syrian Christian politician in Lebanon, has been assassinated. The shooting comes at a time of heightened political tension within the Lebanese government. Guest: Rami G. Khoury, editor-at-large of the Daily Star Newspaper in Lebanon.

Elizabeth Kolbert of The New Yorker talks about what carbon emissions are doing to ocean waters. Research indicates these emissions are changing the chemical composition of sea water and affecting marine life.

Cornell research Brian Wansink has made a career out of finding out how much we eat and it is not a pretty picture.

Garrison Keillor reflects on the work and life of the influencial director. Altman directed "A Prairie Home Companion" which hit the theaters earlier this year.

Chris Kimball of Cook's Illustrated and America's Test Kitchen gives us insight into the mysteries of cranberry sauce and fluffy mashed potatoes.