The United States v. United States District Court for the Eastern District of Michigan et al., 1971, was a landmark Supreme Court case that dealt with issues of domestic surveillance and Fourth Amendment rights. The government had wiretapped without obtaining a warrant, conversations involving Lawrence Robert Plamondon, who was charged with conspiring to destroy government property. The Justice Department argued that the President has inherent authority to order such wiretapping in the interest of national security without judicial oversight or approval. However, the Supreme Court ruled unanimously against this argument stating that neither Congress nor the President can sanction warrantless domestic surveillance related to criminal activity even in cases where national security is involved. This decision reaffirmed citizens' Fourth Amendment protections from unreasonable searches and seizures by requiring warrants for any electronic surveillance within U.S borders.

The dissenting opinion in the case of United States v. United States District Court for the Eastern District of Michigan et al., 1971, was not recorded as all justices concurred with the majority decision. The Supreme Court unanimously ruled that warrantless domestic surveillance operations by the government violated Fourth Amendment protections against unreasonable searches and seizures, thus requiring a court-approved warrant to conduct such activities even in cases involving national security threats.