Bernard Goldstein, professor and dean emeritus of the Graduate School of Public Health at the University of Pittsburgh, testifies Feb. 1, 2012, before the Energy and Environment Subcommittee at the Rayburn House Office Building in D.C., about the EPA's approach to ground-water research in Pavillion, Wyo. (Barbara L. Salisbury/The Washington Times)

Photo by: BARBARA L. SALISBURY

Bernard Goldstein, professor and dean emeritus of the Graduate School of Public Health at the University of Pittsburgh, testifies Feb. 1, 2012, before the Energy and Environment Subcommittee at the Rayburn House Office Building in D.C., about the EPA's approach to ground-water research in Pavillion, Wyo. (Barbara L. Salisbury/The Washington Times)