One thing I think would be of great benefit for all who engage in spreading the word of god and that is this: respect the beliefs and even the rejection of those who are not open to your message. Realize that the governments that you feel are in your way are also protecting those who do not wish to be "gotten to", so to speak. That is thier job. Don't hammer at people, and instead let them be drawn to you by your actions. Be a living example of what you believe, and sometimes let silence spread your message. Silence mixed with action and example can speak pretty loudly. In other words, I would not make it your mission to convert eveyone you encounter. Pushing can have the opposite effect of what you are trying to achieve.