Time to invest in Korean reunification? I know a man who did

As the absurdly coiffed and probably deranged Kim Jong-Il fingers his nuclear button, not even the ballsiest hedge fund manager would contemplate investing in the prospect of Korean reunification. But I could name one secretive London investor who took a big punt back in the 1980s, buying a bundle of North Korean government debt at a tiny percentage of its nominal value on the off-chance that it will one day be redeemed at par by a united Korean treasury.