Yesterday, a federal judge expressed concern over former police commissioner Bernard Kerik's condition while being held at the Westchester County Jail, after troubling reports from the jailhouse shrink. The Post reports that its sources "weren't surprised that the fallen hero of 9/11 was apparently losing it in the slammer. Kerik can't stand humiliation, the sources said, and was totally despondent after the 2004 debacle when corruption allegations derailed his nomination to head the federal Department of Homeland Security." ABC News' sources say Kerik is "depressed" and in a "funk" but is not suicidal.