The biggest threats to liberty are Neo-Conservatism, Corporatism, Fundamentalism, and Cultural Marxism.
Neocon-Militarize the world, and police your homeland to protect the majesty of the Nation(Fascism)
Corporatism-Let Corporate interests rule the Government, and screw the rest and let them lose their rights as consumers and workers, by regulating goods and services and crushing competition.
Fundamentalism-Evangelical theocracy runs the country, where people who think that anything that is against their religion should be illegal, and force religion and virtue through legislation
Cultural Marxism-Force a culture of political correctness, a nanny state, where everyone is forced to play nice, and a need to regulate and protect us from anything too dangerous.
Americans enjoy some of the greatest civil liberties in the world. Although there has been increased security after 911, it is not right to call America a police state. People still have basic civil rights, and surveillance is justified to identify terrorists who are plotting attacks. America is still a free country.