1 Rita R. Colwell is a Distinguished University Professor at the Center for Bioinformatics and Computational Biology, University of Maryland Institute of Advanced Computer Studies, University of Maryland, College Park, Maryland, USA. rcolwell@umiacs.umd.edu.
2 Gary E. Machlis is a University Professor of Environmental Sustainability at Clemson University, Clemson, South Carolina, USA. machlis@clemson.edu.