Article Photos: In '72, EPA battled pollution; now it's politics 6/37

  This photo taken April 13, 2012, shows a one-time chemical drainage ditch now overgrown with vegetation photographed at the location of an historic photo taken in 1973 near the Pittsburgh Paint and Glass plant in Lake Charles, La., for the Environmental Protection Agency's "Documerica" program, 1972-1977, to documents subjects of environmental concern. (AP Photo/Gerald Herbert)