Can you elaborate on the Fourth Amendment and how it relates to the NSA's mass surveillance?

The Fourth Amendment of the U.S. Constitution protects citizens from unreasonable searches and seizures. It requires any warrant to be judicially sanctioned and supported by probable cause. The NSA's mass surveillance program, as revealed by Edward Snowden, was a violation of this amendment. The program involved the collection of phone records and internet data of U.S. citizens on a large scale, without specific warrants or probable cause. This was facilitated by the failure of the legislative and judicial branches of the government to provide adequate oversight. Secret courts were expanded to authorize mass surveillance without public scrutiny or challenge, and the U.S. Supreme Court denied the right to challenge the NSA's surveillance in open courts. In essence, the intelligence community, with the authorization of the executive branch, was able to bypass the protections of the Fourth Amendment.