Do we have information on the screening process, and did a statistician make a report?
I would be more tempted to consider the conclusions if the report was sourced, and not hosted on a clickbait site.
I have not research specifics. I expect each state has a slightly different process. Regardless, overall it seems it is a profound waste of money.
From: http://thinkprogress.org/economy/2015/02/26/3624447/tanf-drug-testing-states/
According to state data gathered by ThinkProgress, the seven states with existing programs — Arizona, Kansas, Mississippi, Missouri, Oklahoma, Tennessee, and Utah — are spending hundreds of thousands of dollars to ferret out very few drug users. The statistics show that applicants actually test positive at a lower rate than the drug use of the general population. The national drug use rate is 9.4 percent. In these states, however, the rate of positive drug tests to total welfare applicants ranges from 0.002 percent to 8.3 percent, but all except one have a rate below 1 percent. Meanwhile, they’ve collectively spent nearly $1 million on the effort, and millions more may have to be spent in coming years.
From: http://theantimedia.org/after-7-sta...e-recipients-1-thing-became-stunningly-clear/