Frack sand puts oil workers at risk for deadly silicosis

Gilbert Banuelos struggles to breathe. Even sweeping his porch requires an oxygen tank. He's suffering from an incurable lung disease called silicosis, the result of breathing in dust as a factory worker. Doctors say oil and gas workers handling fracking sand could be the diseases next victims, and the industry is trying to get ahead of the problem. Rocky Mountain I-News' Anna Boiko-Weyrauch reports for Inside Energy.