Former Enron Chief Executive Officer Jeffrey Skilling testifies on Capitol Hill in a Tuesday, Feb. 26, 2002 photo, before the Senate Commerce Committee hearing on Enron. While ex-WorldCom chief Bernie Ebbers faces securities fraud charges in Oklahoma, Enron Corp.'s former top two leaders remain free of criminal charges more than 18 months into the federal government's investigation into misdeeds that fueled the company's 2001 collapse. (AP Photo/Kenneth Lambert)