During the revolution in religion, the separation of church from state started. It took power away from Church leaders. As people start to think for themselves, they started to demand more power from within the church. Congregation started removing their pastors and influencing their pastors' messages and sermons to the Church. More importantly, there has been a new American concept of freedom as renewed intellectuals started studying religion. People started to question the Anglican Church structure, the head being the King of England, which eventually led to the American Revolution.
Generally speaking, it would be "civil rights" that people gain as part of living under an organized government, although of course this depends greatly on the government in question.
This is a personal question, which means that only you can answer it. However, I can give some examples that might help guide your work.
An example of a primary source that you might encounter in your own life is that of a news article. As this article is likely to be written by a reporter witnessing the events, it can be considered a primary source. On the other hand, an example of a secondary source would be a non-fiction book that talks about a historical event. This is because such a book would give a second-hand account of an event based on historical information.
Answer:
Because of terrorist attacks, new laws and policies, and better safety.