What are some examples of censorship in our society?

Some of today's most obvious forms of censorship are the following: If you criticize a black person, you are racist. This causes only the fringes of society to speak out. If you criticize muslims for all their terrorists, you get in trouble for criticizing someones religion, even though they really need to be openly criticized. If you openly express your views, you will be treated like "joe the Plumber" you had the government looking into his background just for asking the presidential candidate a serious question. If you criticize a regulatory agency, they will make you the target of some investigation. If you criticize the police department, they will make you a target. Our politicians make laws that make it easy for these agencies to go after someone for no real reason. This list goes on!!!!!!!!!!