Real Time with Bill Maher

Guests: Columnist Paul Krugman, MSNBC host Tucker Carlson, The View co-host Joy Behar; via satellite, fmr Pres Vicente Fox (Mexico) and author/activist Naomi Klein Topics: U.S./Mexico relations and immigration, Republican presidential debates, State Children's Health Insurance Program and Bush's veto, Middle East policy, more on Blackwater USA incident