Y 1451 otos 619 rid 1434 (11th at nen As Judge Fay has conclusion is United States v. Quour- main, 618 F.2d 88 (8d Cir.1984). Unfortu- nately, in Quaterntain, the court specifical- ly held that the informant was granted "the minimum immunity required by the Constitution"—that is, use immunity. Id at 88