In a response filed yesterday to a federal judge’s order May 11, an FBI official offered no denials about the existence of video images captured by more than 20 surveillance cameras operating prior to 9:02 a.m. on April 19, 1995, in the vicinity of the Alfred P. Murrah Federal Building in downtown Oklahoma City. Instead, he explained that officials at the bureau merely cannot find the tapes and raised the possibility that they “might have been misfiled and thus could be located somewhere other than in the OKBOMB file (though it would be impossible to know where).” The order, issued...