FISA requires that a violation of Section 1809(a) be done "intentionally." The legislative history makes clear that Section 1809(a) violations were intended to be specific intent crimes, reaching only purposeful or deliberate efforts to engage in unauthorized electronic surveillance. H.R.Rep. No. 1283, 95th Cong., 2d Sess. 97 (1978).
[cited in USAM 9-60.400]