g impeachment or rebuttal." United States v. Stein, 488 F. Supp. 2d 350, 356-57 (S.D.N.Y. 2007) (quoting United States v. Lloyd, 992 F.2d 348, 351 (D.C. Cir.1993) (internal quotation marks omitted)). Rule 16(d)(1) provides that a party may seek a protective order from the court to "deny, restrict, or defer