http://news.ft.com/cms/s/d6c3d1e2-093a-11da-880b-00000e2511c8.html...Kochan recounts Citibank's dealings with what he calls "dirty clients": Sani Abacha, president of Nigeria; El Haj Omar Bongo of Gabon; Asif Ali Zardari, husband of Benazir Bhutto, the former Pakistani prime minister; and Raúl Salinas de Gortari, brother of the former president of Mexico and the infamous "tough guy who knows how to raise $20m over a weekend".
Kochan's account is a product of many years of research and interviews. He is tough but fair, noting that Citibank was not charged with crimes and has enacted modest reforms, and also making it clear that Citibank is not alone.
One interesting question remains unanswered: what role did terrorist financing play in the build-up to the attacks of September 11 2001? There are two pieces of evidence on this point. First, during the days immediately prior to 9/11 the volume of put options, investments that pay off only when a stock declines in price, surged in the parent companies of American Airlines and United Airlines. According to a footnote in the 9/11 commission report, this unusual trading had no connection to terrorism.
Some people remain suspicious, and have pointed to a second piece of evidence: the dramatic spike in US dollars - particularly $100 bills -in circulation in August 2001, one of the three largest monthly increases in 50 years. This surge might have an innocent explanation. But it might also indicate that people with advance knowledge of the attacks were hurriedly withdrawing cash.Is it possible that terrorists profited from inside information in advance of their attacks? The US government insists the answer is no, but it is hard to imagine that terrorists who are savvy in using shell companies and offshore trusts to hide the identity of their contributors would not also think of trading on inside information or withdrawing cash early.
Perhaps government officials believe the details of these activities, like those about the manufacture of nuclear weapons, should remain out of print, lest they reach the wrong hands.