Watch the "Enron: The Smartest Guys in the Room" - write a 2-3 page paper detailing what you think the issues were that opened Enron up for fraud.
You can watch it on letmewatchthis or any other free website. It is also located on Netflix if you have it. You can sign-up for a free 7-day trial if you wish to, just remember to cancel it before you are charged for the month.