The 4th Amendment was added to the United States Constitution in 1791 as part of the Bill of Rights. It protects American citizens from unreasonable searches and seizures by the government. In recent years, law enforcement is using new technologies like global positioning systems and video surveillance to fight crime. Critics say 4th Amendment protections are eroding in the process. They believe Americans have a fundamental right to privacy– even in public places. Today, as part of our ongoing “Constitution Today” series, we examine the origins of the 4th Amendment and how digital technology is testing its boundaries like never before.