. “Civil RICO is an unusually potent weapon . ‘courts should strive to flush out frivo- lous RICO allegations at an early stage of the litigation.’” Katzman v. Victoria’s Se- cret, 167 F.R.D. 649, 655 (S.D.N.Y.1996). [74] The Federal complaint asserts a RICO claim under § 1962(a), which states in part: “