llenges. "In the absence of a claim of privilege, a party usually does not have standing to a subpoena directed to a non-party witness." Lansford v. Chyrsler Motors Corp. , 513 F.2d 1121, 1126 (2d Cir. 1975). For example, in United States v. Wells , 2006 WL 3203905 (E.D. Mich. Nov. 3, 2006), a party sought to quash a