The NSA sits at the nexus of violations of both the Fourth and Fifth Amendments with a legal dodge called Parallel Construction. Parallel Construction is a technique used by law enforcement to hide the fact that evidence in a criminal case originated with the NSA. In its simplest form, the NSA collects information showing say a Mr. Anderson committed a crime. This happens most commonly in drug cases. The conclusive information is passed to the Drug Enforcement Agency (DEA), who then works...
