The most extreme way to get rid of those who are fighting for freedom and justice is jail or killing those who dare to speak up. Susan Lindauer has been in prison. Patriot Act was used.
Another way is the labeling and using expressions to stop the debate:
"This is conspiracy theory. " End of discussion.
“Voice or no voice, the people can always be brought to the bidding of the leaders. That is easy enough. All you have to do is tell them they are being attacked, and denounce the pacifists for lack of patriotism and exposing the country to danger. It works the same in any country.”
Herman Goering, Nazi leader
America is always on the verge of a terrorist attack. Sounds familiar?