http://mobile.nytimes.com/2016/05/18/business/hiring-hurdle-finding-workers-who-can-pass-a-drug-test.html

As economy expands and labor markets tighten, employers finding it harder to recruit workers that can pass drug tests. According to the NYT, “In a sector where employers like himself tend to rely on Latino workers, Mr. Russow tried to diversify three years ago by recruiting white workers, vetting about 80 people. But, he said, “As soon as I say ‘criminal background check,’ ‘drug test,’ they’re out the door.”