Looks like the price of Bitcoins just made a good jump at https://www.mtgox.com/ . Are speculants thinking that if the us government are geting involved it validates Bitcoin further?
possibly also something more along the lines of 'anything that keeps bitcoin in the news is good news', keeping up the influx of new people wanting to try bitcoin.
mtgox isn't an accurate measure of the real price of BitCoin right now. Since all USD withdrawals are effectively shut down the USD price on Mt. Gox is artificially high right now.
Edit: Screenshot of the jump: http://i.imgur.com/G5Dk7Nh.png