Bitcoin?

I don't know the ins and outs of this issue very well-- it's an interesting idea, but it does seem to have a dark side.  It seems clear that Bitcoin would be most useful to criminals (particularly drug dealers) who don't want to be traced by the government-- certainly for those criminals who are not already in the system, so to speak. But there are some really interesting issues about the meaning of currency and government, and what Bitcoin can teach us about economics.

I suppose, if one were to invest in Bitcoin, now would be the time, as it may go up dramatically from here and it's best to get in now. But it may also crash, or even worse, be outlawed.