Every week hundreds of Utahns carry their groceries home in reusable grocery bags. They do it to help the health of the environment, but it may be at the risk of their own health. KSL 5 News pulled out the gloves, the swabs and the culture dishes for a Staying Safe investigation that reveals - you may be carrying more in your bag than you bought. Studies done in other states found some reusable bags have contained samples of e.coli and salmonella. But our tests were negative: no e.coli, no salmonella. The coliforms were another story. Of the 89 bags...