* Headlines for July 23, 2009 * Obama: Cambridge Police "Acted Stupidly" in Arrest of Harvard Scholar Henry Louis Gates * Promoting Healthcare Reform, Obama Admits US Can't Insure All Americans Without Single Payer * Watchdog Group Sues for Disclosure of White House Meetings with Healthcare Execs * Court Rules New York Fire Department Discriminates Against Black, Latino Applicants * "The Yes Men Fix the World": In New Film, Anti-Corporate Pranksters the Yes Men Continue to Jolt Polluters and Profiteers