I poked around some dark corners online...which may not be wise especially these days. I noticed a lot of talk of bitcoins, buying and selling. Turns out it is a form of untraceable currency. Kinda weid but interesting in that something completely new was invented. Kinda like bartering but not really. Looks like Uncle Sam is getting involved. Here is an article that lays out part of the tale.
The coin prince: inside Bitcoin's first big money-laundering scandal | The Verge
The coin prince: inside Bitcoin's first big money-laundering scandal | The Verge