United States of America, Ex Rel. John Doe, Plaintiff-Relator-Appellant v. John Doe Corp. And John Doe, II

*319McLAUGHLIN, Circuit Judge:

Each year, fraudulent billings by federal government contractors deplete the United States Treasury by millions, if not billions, of dollars. See S.Rep. No. 345, 99th Cong., 2d Sess. 3, reprinted in 1986 U.S.Code Cong. & Admin.News 5266, 5268 (“Senate Report ”) (“The Department of Justice has estimated fraud as draining 1 to 10 percent of the entire Federal budget.”). To combat this problem, Congress recently revamped the qui tam provisions of the False Claims Act, 31 U.S.C. §§ 3729-3733 (1988) (“FCA” or “the Act”), to encourage suits by private citizens who learn of…