U.S. Attorney General Eric Holder, right, tours the Institute for the Study and Practice of Nonviolence in Providence, R.I., Thursday, June 2, 2011. With Holder are Teny Gross, left, executive director of the institute, Ajay Benton, second from left, and Juan Carter, third from left. Holder promised Thursday to clarify the Justice Department's position on state medical marijuana laws after federal prosecutors warned they might prosecute everyone from licensed growers to regulators.
Section:Photo
