You might forget that the government has everything at its disposal; they have all the tools needed to track anyone, including any transactions they make. Any company operating under the government's jurisdiction will certainly provide information, especially if they say something related to security.
True that the government has everything at its disposal to carry out whatever it wants, and there is no doubt about it, but the truth is that the government would not come after you if you do not do anything that would attract or call their attention towards your direction. It would even be easier to get at you through the casino or organisation you are operating with, because they would be the first to call the government's attention to you, to play safe before the government would even come after you.