IS4OI 10C-1 (EX) EXTRACTED VERSION OPERATION CASTLE Pr oject Summari es (Revised) NOTICE This is an extract of Operation CASTLE, which remains classified SECRET/RESTRICTED DATA Ld as of this date. Extract version prepared for: Director DEFENSE NUCLEAR AGENCY Washington, D.C. 20305 1 January 1981 bud, — Approved for public release; distribution unlimited.