As more US forces surge into Afghanistan, existing bases have to increase in size to accommodate the new people. Airman Josh Mullenary takes us to Camp Marmal, Afghanistan and explains how civil engineers are making more room for service members.
Duration : 0:1:17
A segment on the toll large-scale hog farming takes on water quality. Produced by the Science & Journalism Program at UNC-Chapel Hill.
Duration : 0:7:15