Douglas Clapp, Clerk for the Senate Appropriations Subcommittee on Energy and Water Development, visited the University of Washington on August 12, 2010. As Clerk, Mr. Clapp is the chief of staff for the influential subcommittee that controls the purse strings for federal energy and water related funding. Pictured is UW Chemical Engineering Ph.D. student Ikechukwu Nwaneshiudu showing Mr. Clapp his nanotechnology-based sensor for detecting trace hydrocarbons in water, a topic made critically relevant by the recent Gulf of Mexico oil spill. Mr. Nwaneshiudu is a Gates Millenium Scholar and National Science Foundation Bioenergy IGERT Fellow working under the guidance of Professors Qiuming Yu and Daniel T. Schwartz.