A day after Republicans on Capitol Hill said they were "deeply concerned" over news that, during his confirmation process, Attorney General Eric Holder failed to disclose work on a terrorism-related legal brief, the Justice Department revealed Friday that the problem was wider than previously known. "It has come to our attention that some but not all briefs submitted to the Supreme Court by or on behalf of Attorney General Holder … [were supplied] in the course of his confirmation process last year," Assistant Attorney General Ron Weich said in a letter to the Senate Judiciary Committee, which vets judicial nominees....