Also, beware of using any fiat money due to NK and ISIS for the same reasons. Also, beware of breathing, because they have been growing, and stealing more and more oxygen.
Lol... I even wonder how you want to even go ahead and be carefull about the bitcoin you receive when the one that lands in your wallet might have move from one place to another that tracing it back to the source from mining point might even be impossible. I don't understand why we just keep on creating problem for ourselves when none really exist. When bitcoin was created, was it created to exclude some set of people from the adoption? I am waiting for an answer.