With the exception of Thailand, bitcoin is legal in every country around the world including the United States. However, because the coin is still not widely accepted it is likely to remain widely unused except on the black market or underground websites. Given that the coin is not regulated, critics are concerned that bitcoins could be used for illegal purposes. In fact, the FBI recently arrested the creator of the underground website Silk Road who created an Amazon.com like shopping experience for individuals looking to use bitcoins to purchase illegal drugs, guns and to hire assassins.