Good read: Scientific American on how the media messes with your mind. Analysis and recap of last night's debate . More from Joe Klein here . Subprime fallout: as housing crashes, rents rise and non-homeowners feel the squeeze. FRIDAY NEWS: * Nicholas Kristof on who the administration is backing in Africa . (Note: graphic.) * The surge was not a success. * Turns out there's a second Justice Dept. probe into waterboarding . * Muslim student organizations debate inclusion vs. exclusion. * Supreme Court issues an... interesting ruling on retroactive decisions . * Whoah. Gang warfare shuts down parts of Los Angeles. * Hee. Foo Fighter Dave Grohl announces his candidacy. (Courtesy mscongeniality.) * Added to the Wolverine cast: Charlie! Adult Swim orders up some episodes of Tony Millionaire's Drinky Crow .