I want to know the answer to the following question:
Who was the former director of the CFTC that testified before the Senate Committee on Commerce, Science, and Transportation on June 3, 2008?
All the background I'm provided with is that "Michael Greenberger specifically named the Atlanta-based IntercontinentalExchange, founded by Goldman Sachs, Morgan Stanley and BP as playing a key role in speculative run-up of oil futures prices traded off the regulated futures exchanges in London and New York.". Is that enough to answer the question?