Water, air quality concerns heighten conflict with pig farms

Iowa hog confinement facility
In this Thursday, Jan. 22, 2015 photo, Barb Kalbach walks near a hog confinement facility, near Orient, Iowa. Kalbach has fought for more than a decade against the construction of huge hog operations, and has joined Iowa Citizens for Community Improvement, a nonprofit that's against such enterprises because members believe they are ruining Iowa's waterways.