Agency watchdogs are up in arms over a Justice Department memo questioning the legality of turning documents they say are crucial to their investigations. The new policy protecting certain portions of sensitive documents — announced last month by the DOJ’s office of legal counsel — came under fresh fire from lawmakers during a Senate Judiciary Committee hearing Wednesday. Lawmakers in both parties, including the top Republican and Democrat on the panel, disagree with the policy shift, saying it goes against the specific intent of the Inspector General Act of 1978. The law specifies that inspectors general have access to...