Tox Tuesday: Workplace drug testing

For the second consecutive year, data is showing that the percentage of American workers testing positive for illicit drugs—including marijuana, cocaine and methamphetamines—is on the rise and has increased from 4.3% in 2013 to 4.7% in 2014.

The data, complied by Quest Diagnostics, took into account 6.6 million urine drug tests and 1.1 million oral […]