6:32 PM PT: Rick Perry "tips his hat" to President Obama for getting Osama bin Laden. But he says he'll give more "propes" (his pronunciation) to Navy SEALs.
6:32 PM PT: Bachmann slams the debt deal super Congress that John Boehner created because it might cut military spending. More proof that Republicans aren't against spending...just against spending on people they don't like.
6:35 PM PT: Bachmann says it was a mistake to go into Libya (even though not a single boot was on the ground). I guess that's part of her $2 gas strategy.
6:36 PM PT: There's 10 minutes left in the debate. I'm not sure any video moments really stick with me so far, but substantively, I think that exchange between Romney and Perry on Social Security is going to be a big deal over time. It was by far the biggest policy difference in the debate.
6:39 PM PT: Jon Huntsman is asked to name names when he says his fellow Republicans are "anti-science." At least initially, he wimps out. Won't name names. Then talks about Obama. Maybe Harris will press him in a follow up? Nope. Next question is to Rick Perry about global warming. Harris asks him to name the most convincing scientist on global warming. Perry stumbles around, and essentially compares global warming scientists to Galileo's critics.