<p>“A device is making its way into schools to hide the smell and smoke of marijuana. Students are using vapor pens, and they’re using them in classrooms.” …</p>
<p>Higher education.</p>
<p><a href=“Students Find Way To Secretly Smoke Marijuana In Class - CBS Colorado”>http://denver.cbslocal.com/2014/02/05/students-find-way-to-secretly-smoke-marijuana-in-class/</a></p>