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The Fourth Amendment to the Constitution of the United States prohibits unreasonable searches and seizures, stating that people have the right to be secure in their persons, houses, papers, and effects. It further requires that any search warrant be judicially sanctioned and supported by probable cause.1 Over the past few decades the U.S. Supreme Court has ruled that many "searches" were not actually "searches"; therefore, they are not subject to the constitutional protections of the Fourth Amendment. Due to extensive advances in technology, there is increasing concern about privacy. This article will examine the relevant Supreme Court rulings that have protected and alternately restricted Fourth Amendment privacy rights, as well as analyze the Court's most recent decisions regarding this matter.