Answer:
Answer 1: The PATRIOT ACT allowed the government to have greater surveillance of both foreigners and US citizens in order to prevent future terrorist attacks.
Answer 2: According to this document, the government has been monitoring people through collecting phone records of millions of Americans from telecommunications providers, collecting similar information about emails, internet searches, and credit card transactions.
Answer 3: It is debatable whether this is an appropriate response to the terrorist attacks or not. While it gives the government increased power to monitor potential suspicious activities, it also can be argued that it is an infringement on individual rights and privacy. Some may argue that this kind of surveillance is necessary to prevent potential terrorist attacks, while others argue that it is too intrusive.