The US hasn't had credible intelligence on Osama bin Laden's whereabouts in "years," Defense Secretary Robert Gates admitted to ABC's George Stephanopoulos today. "We don’t know for a fact where Osama bin Laden is," the defense secretary said. "If we did, we’d go get him." National Security Adviser Jim Jones begged to differ slightly, telling State of the Union, "The best estimate is that he's in North Waziristan."