1) John Locke contributed to the development of human comprehension, economics, and politics that still influence the operation of public administration nowadays. He explained the concept of a state of nature where every man realies on.
In addition to that, he contributed the most to create the constitutionalism and the separation of powers, expanding the idea of modern executive and legislative power. To finish, he also promoted the idea of property and the basis for prosperity.
2) Both Civic rights and Civic responsibilities are performed by the law enforcement and are subjected for the citizens. They differ in meaning. Civic right is an action thats required by law, such as paying taxes and attending school. Civic responsibility is suggested, but not required by law, such as attending to vote.
3) Natural rights are based on the universal natural law that every human being share just for being a human being. Given that, those laws cannot be denied or even ruled out by any government. For me, the only natural right that's possible is the property right, which includes the right of own my own body (auto-property) and the properties under my name.
4) The governmental regulations are bad because they reduce your liberty. Because of its power, the state can try to fix any possible problem, and in some cases only contributing to make it worse.
One example of a bad regulation come to us in the minimum wage, which states a minimum amount of money that has to be paid to the employee regardless of its function. There are many entry jobs that don't make enough money to reach the minimum wage but are good opportunities to learn at work. For those cases, the employer is permanently prohibited to offer those jobs.
5) The process of becoming US citizen became even more difficult and complicated after the terrorist attacks of the early 2000s. In comparison with other countries, I can easily say that the US is a very difficult country to achieve citizenship.