David Franz: Senators Nunn and Lugar took some political risk to say, we can do this softly, through science engagement in Russia, rather than harshly, through stopping... forcing them to stop what they were doing. And really, what they did has provided funding for scientists to work together as we've been talking about. And it was proven to be effective across the board, across nuclear, chemical, and eventually, as Gennadiy said, the biological area as well.