Former Enron executive David W. Delainey, a Canadian, arrives at Federal court in Houston for sentencing after pleading guilty to insider trading September 18, 2006. Delainey, who cooperated extensively with the U.S. Justice Department Enron Task Force had been praised by prosecutors for his help in the case against Enron founder Ken Lay and former CEO Jeff Skilling and was sentenced to 30 months in prison. REUTERS/Richard Carson (UNITED STATES)