AIG of the US, the failed insurance group, was proven to be a vast systemic risk last year, in large part because of its diversification from insurance into complex financial engineering.

• 事实证明，如今被政府接管的美国国际集团(AIG)就是去年的一个巨大系统性风险，主要原因就是该集团把业务范围从保险拓宽到复杂的金融工程。