Many oil and gas workers come into contact with a fracking byproduct called brine. The gas industry says it’s safe. But is it really? This week on Inside Appalachia, we’ll talk with reporter Justin Nobel, who says some workers are being exposed to dangerous levels of radioactivity, which could be making them, and their families, sick. And, as we head into garden season, we’ll check in with an update on a mystery about mortgage-lifter tomatoes.