<http://schema.org/alternativeHeadline>
"A new Canadian study says that piloting a car after smoking marijuana nearly doubles your chances of getting into a serious accident. But don't tell that to NORML, or the marijuana growers."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/green-tech/transportation/blogs/the-straight-dope-on-driving-stoned>