Thanks for the link. I will look it up. What you said tends to match What I heard about N. Korea's Macao operation in S. Korea. The difference, I gather, would be details on the extent of Chinese complicity. I suspect that China also has a lot to answer for.
It's pretty old news North Korea has used Macau to put counterfeit US currency into international market (read this on the Chinese edition of Reader's Digest in December 1994), but it is shocking to read that the assination attempt on Chun Doo-hwan in Rangoon in 1983 and the KE 858 sabotage in 1987 were both coordinated in Macau. And in both cases, the National Security Bureau in Beijing must have known in advance and with Macau as a "semi-liberated zone" both incidents can't happen without China's permission.