The US Department of Homeland Security is developing new laser-based security scanners that can identify any chemical substance in your body - and operate at a range of up to 50 meters. Officials say they'll be used to detect explosives at airports and border crossings. But other experts warn they could identify alcohol, drugs, and even what you had to eat - prompting concern for civil liberties. For more RT talks to Charlie McGrath, founder of the wideawakenews.com website.<br /><br />RT LIVE http://rt.com/on-air<br /><br />Subscribe to RT! http://www.youtube.com/subscription_center?add_user=RussiaToday<br /><br />Like us on Facebook http://www.facebook.com/RTnews<br />Follow us on Twitter http://twitter.com/RT_com<br />Follow us on Google+ http://plus.google.com/b/102728491539958529040<br /><br />RT (Russia Today) is a global news network broadcasting from Moscow and Washington studios. RT is the first news channel to break the 500 million YouTube views benchmark.