A criminal investigation into why the CIA destroyed hundreds of hours of videotapes recording harsh interrogations of two Al Qaeda leaders will stretch on at least another six months—and could ultimately result in indictments, according to a recent federal court filing obtained by NEWSWEEK. In his affidavit, John Durham, the veteran federal prosecutor on the case, said he is examining whether anyone "obstructed justice, made false statements, or acted in contempt of court or Congress in connection with the destruction of the videotapes." He said that he is specifically trying to determine whether the destruction of the tapes violated any judge's order. But progress may be slow. Two sources close to former intelligence officials who are potential key witnesses in the case, both of whom asked for anonymity when discussing the inquiry, said that these officials have not been summoned to give grand-jury testimony; one of them hasn't even been questioned by the FBI yet. ...