They worked in sweltering heat for Exxon, Shell and Walmart. They didn’t get paid a dime

"A nationally renowned drug rehab program in Texas and Louisiana has sent patients struggling with addiction to work for free for some of the biggest companies in America, likely in violation of federal labor law."

https://www.revealnews.org/article/they-worked-in-sweltering-heat-for-exxon-shell-and-walmart-they-didnt-get-paid-a-dime/