In case you don't know - the three amandments are as follows (per the
Heritage Foundation):
Roving Surveillance Authority: Roving wiretaps have been used routinely by domestic law enforcement in standard criminal cases since the mid-1980s. However, national security agents did not have this garden-variety investigative tool until the passage of the PATRIOT Act in 2001. Section 206 of the PATRIOT Act allows law enforcement, after approval from the FISA court, to track a suspect as he moves from cell phone to cell phone. The government must first prove that there is “probable cause” to believe that the target is a foreign power or an agent of a foreign power. It further requires continuous monitoring by the FISA court and substantial reporting requirements to that Court by the government.
Business Record Orders: Domestic law enforcement, working with local prosecutors, routinely rely on business records through the course of their investigations, oftentimes through the use of a subpoena. However, national security agents did not have the same authority to acquire similar evidence prior to the passage of Section 215 of the PATRIOT Act. This provision allows law enforcement, with approval from the FISA court, to require disclosure of documents and other records from businesses and other institutions (third parties) without a suspect’s knowledge. The third-party recipients of 215 orders can even appeal any order to the FISA court.
The Lone Wolf Provision: Section 6001 of the Intelligence Reform and Terrorism Prevention Act allows law enforcement to track non-U.S. citizens acting alone to commit acts of terrorism that are not connected to an organized terrorist group or other foreign power. While the FBI has confirmed that this section has never actually been used, it needs to be available if the situation arises where a lone individual may seek to do harm to the United States.
I can see people complaining about the entirety of the Patriot Act and the invasion of privacy issue - but if we are allowing 95% of the Patriot Act to continue, and these are left out - I would rather have these available.