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" At least 50 U.S. law enforcement agencies, including the FBI and the U.S. Marshals Service, have been quietly permitting their officers to use extremely sensitive radar devices, which allow them to see through walls of private homes. Surprisingly, the devices have been in use for over two years now.  The handheld devices, known as Range-R, use radio waves to detect movement within a building. The technology can tell officers whether or not a person is inside the house, which room they are in and if they&amp;#039;re moving around from more than 50 feet away. They cannot, however, provide an image of what&amp;#039;s inside. Nevertheless, the news is sparking a heated conversation about public privacy vs. police safety. RELATED: 9-Year-Old Is A Wanted Criminal In Idaho For A Ridiculous Offense Officials are stepping up to say that the technology plays a crucial role in keeping officers safe, for example, during high-threat situations such as storming a building or rescuing hostages. On the other hand, members of the U.S. Supreme Court have pointed out that peering into a person&amp;#039;s home via high-tech sensors is illegal without a search warrant.  It wasn&amp;#039;t until this past December that any light was shed on the situation, after a man named Steven Denson was arrested in his home for violating his parole. When it was later revealed in court that agents used the radar device to locate Denson, judges were &amp;quot;alarmed,&amp;quot; stating, &amp;quot;The government&amp;#039;s warrantless use of such a powerful tool to search inside homes poses grave Fourth Amendment questions.&amp;quot; RELATED: Study: You&amp;#039;re Making It Too Easy For Hackers To Steal Your Info But privacy advocates are concerned about how these devices were kept quiet for so long. According to L-3 Communications, makers of the Range-R, U.S. law enforcement agencies have purchased roughly 200 units at about $6,000 each since as far back as 2012. How do you feel about police officers being able to see into your home?  Via USA Today  "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.womansday.com/life/news/a49180/new-radar-devices-allow-police-to-see-inside-homes/>