Another possibility, suggests Mr Kirkendall, is that federal prosecutors have looked at the large number of successful appeals against the convictions they won in jury trials ofexecutives from Enron and other firms, of which Mr Skilling's and Lord Black's are the latest, and have concluded that going after Wall Street executives is not worth the career risk.
Today a jury found that Leung, along with the previously convicted companies and former executives, was guilty of fixing the prices of LCD panels sold in the United States.