had a duty to maintain grand jury secrecy. This attorney could neither confirm nor deny the information presented by the 'external party.' Senate of the Commonwealth of Puerto Rico'. United States Dep't of Justice, 1992 WL 119127 at *3 (D.D.C. May 13, 1992) (citing Barry'. United States, 740 F. Supp. 888, 891 (D.D.C. 1990) ("Ru