Crazy chess champion treated like criminal

Rothbard mentioned this in an issue of the Rothbard-Rockwell Report riddled with the kinds of skeletons that make Micha squeamish. The excerpt:

Meanwhile, the U.S. continues to try to inflict pain on the Serbs by maintaining sanctions against any inflow of arms, material, manufactured goods, indeed everything except food. But the Serbian border is like a sieve, and all manner of vital goods are getting through all the time. In their frustration, the U.S. has finally found a violator of the sanctions to crack down on: beleaguered American chess wizard Bobby Fisher, who played a chess match in two spots in Serbia; a resort hotel on an island off the Montenegrin coast, and then in Belgrade itself. For defying the U.S.-UN warnings, the U.S. is pressing charges against Bobby, threatening him with: confiscation of Bobby's $3.6 million winnings, an extra $200,000 fine, and several years in jail. This for playing chess! I would like the U.S. authorities to explain something to me: just exactly how did Bobby Fischer's chess transaction aid the Serb economy, much less provide them with the sinews of war against the Serbs' ethnic enemies? Bobby played chess in Serbia, in return for which, a Serb millionaire paid Bobby $3.5 million plus expenses. The Serbs find themselves with 3.5 million dollars less to spend on sinews, while their enjoyment of chess scarcely helps build one more plane or one more military base. How wackily vindictive can the U.S. government get? Bobby of course is not going to return to the U.S. to face the indictment, so the latest is U.S. threats of extradition. Hey! Get that dangerous chess player!

Fischer held unusual views his entire adult life; why do you say he was on the brink of insanity when he spoke of 9/11?