Here's one on his lack of mental compentence to testify at his own trial.
Apparently Singapore contacted our intelligence service and ASIO organised the sting with the FBI. Prior to that he had no buyer. That's consistent with the Wikipedia article.
I can't find a reference now for the documents not actually being classified - I remember this from media coverage at the time. I think the story was that they were USGS maps which were subsequently publically available or something like that.
It's a fair point but my intention was to bracket the possible returns.