There really isn't a good way to regulate them... that's the point. How would you suggest they regulate them?
Look at the link to the video of the CBS News interview I posted earlier. The main exchange is already regulated and looks like bitcoin developers will cooperate with regulators.
See the price spike to $28+ that's called a blow off top.
The cats out of the bag the US Government has their hands all over this.
People will be trampling over themselves to get their cash out soon. The main exchange won't be able to handle the stampede which will perpetuate the crash.
Bottom line Bitcoin can't be what you thought it could period.
The main developers knew the the Government would need to be involved and hinted to such.
You knuckleheads just never bothered to listen. Now you get to pay the price for not paying attention.