By 2000, the Enron Corporation was a colossus. It was America's seventh largest company, employed 27,000 staff, and was a multi-billion dollar operation. Its management were close friends of both Bush presidents, and were making - in some cases - hundreds of millions of dollars each. A year later, in the fall out that followed the Enron implosion, it emerged that - months before the scandal broke - one voice inside Enron had been trying to alert management to the looming accounting scandal.