The changes that occurred to U.S. Law as a result of the Patriot Act were:
The purpose of the Patriot Act was to protect Americans from another event like 9/11. To this end, it became easier for the government to spy on people to identify terrorist threats.
The government could also stop certain financial transactions and deny entry to certain individuals if they suspected any foul play related to terrorism.
Find out more on the Patriot Act at https://brainly.com/question/25741451.