Oops. Wikipedia's new editorial oversight didn't start soon enough to block a statement in President Obama's Wiki profile that he's a "puppet" of Columbia and Harvard Law. Mystery writer "Mrjazzguitar" substituted the word in the kind of prank that Wikipedia hopes to curtail with its new policy to monitor all copy changes by contributors about living people before they hit the web. Mrjazzguitar is apparently no front for the RNC, Gawker reports. His previous editorial escapades have been limited to entries on "fingerstyle guitar" and Chris Crocker.