Prosecutors are gearing up for a retrial in the Ghislaine Maxwell sex-trafficking case. In a sign the Department of Justice expects it will be forced to go head-to-head with Maxwell in a courtroom for a second time, they have asked a New York judge to agree to the “categorical withholding” of the FBI’s top-secret files on her sex predator pal, Jeffrey Epstein, Knewz.com has exclusively learned.