IQ2 debate: Does the mass collection of phone records violate the Fourth Amendment?

NSA protest
Alli McCracken joins activists protesting the surveillance of U.S. citizens by the NSA outside the Justice Department where U.S. President Barack Obama gave a major speech on reforming the NSA January 17, 2014 in Washington, DC.
Win McNamee/Getty Images

Some say the mass collection of US phone records is an invasion of privacy and others say it is necessary to keep us safe. Is the collection of phone records a "search" or a "seizure?"

The Intelligence Squared debate motion is: Mass collection of US phone records violates the Fourth Amendment.