Google is our friend ... sometimes.

 http://www.nakedcapitalism.com/2008/06/one-method-to-flush-out-oil-speculators.html

"the commercial participants asked for relief from the enormous margin calls from ever-rising prices. The CFTC and the Comex (the predecessor to the Nymex) responded effectively by imposing “liquidation-only” trading — traders were allowed only to close existing positions and not permitted to initiate new positions.

This forced purely speculative positions to be closed rapidly, as they could no longer be “rolled” into future months at expiration. This caused the price of silver to drop by $12 the day after it was imposed, a decrease of over 20%! Over the course of the next three months, as contract months expired, the price dropped over 50%."

I'm guessing those successful future traders in the phone booth, are on the phone to the administration at times.  There is speculation about who made tens of millions if they knew the SEC would be looking into Goldman Sachs the other day.  Obama got about a million from GS, and more from Soros ... could his clan have let some political chums in on the secret ... as a little payback?  Surely not ... that would be wrong.