standard of review and even if limited to directing that a prosecution be undertaken in good faith [citation omitted] would be unwise." Inmates of Attica Correctional Facility v. Rockefeller, 477 F 2d 375 (2d Cir. 1973). See U.S. v. Batchelder, 442 U.S. 114 (1979) ("Whether to prosecute and what charge to file or bring bef