It's not the "government". It's some people. These people are always going to be their. People who have a view of authoritarian government, people who are opportunists, people will break the rules to do what they feel needs to be done. Or a combination of above. These factors work together to produce some negative results. The key point is it's not a conspiracy. These people all believe that they individually are doing the right thing, They don't get together and plot how they are going to turn the US in a fascist states. Instead they get into power, or are allowed to do what they want, because things like 9/11 occur and people get scared.