In case anyone had thought North Korea had given up attempts at sabotage, ten days earlier a small detachment of North Korean soldiers had been caught making their way through the demilitarized zone. Mr. Buckley recounts the reaction from Pyongyang: "'The South Korean puppet government has committed a grave provocation, seriously getting on our nerves by fabricating a false report after creating an incident.' It is," comments WFB, "like a time warp with just a little echo chamber in Castro's Cuba." General RisCassi is no polemicist, but he has a quiet authority that gives weight to his assertions. WFB: "Are you free to tell us to what extent our technology permits us to establish whether North Korea is actively engaged in the development of a nuclear weapon?" RR: "I can tell you from all the means that are available to me that we are convinced that they have constructed a facility that will allow them to fabricate a nuclear system within two to three years."