"Several countries abandoned Crypto AG but failed to ensure secrecy. The Libyans switched to Gretag units after the NSA cited secret communications to allege Libyan involvement in the 1986 La Belle disco bombing in West Berlin. One senior US official said the fact that the Libyans were making their codes more difficult to crack would "make our job tougher." But the NSA seemed to have the Gretag base covered as well. According to one knowledgeable cryptographic industry expert, NSA's program to co-opt the services of encryption manufactures probably extends to all those within reach of NSA operatives." http://mediafilter.org/caq/cryptogate/ So how was Regan blown anyway? If the fix wasn't in then TEMPEST/intercepts are another possibility or a defector/double agent.The least likely scenario?Possibly the one presented in court.