1. In Kyllo v. United States (2001), the U.S. Supreme Court ruled that when the government uses a device that's not in use by the general public to "see" things it could not without intrusion, that is a "search" and requires a warrant.
2. U.S. v. Jones (2012) was the first major case of digital technology surveillance and involved police attaching a GPS tracking device to a person's vehicle without a search warrant.
3. Broadcast media traditionally has had the strongest First Amendment protection (meaning the fewest regulatory restrictions) while print media has the weakest First Amendment protection.