This Week’s Highlights A very useful step for Moscow and Washington would be to revive the practice of convening bi-annual U.S.-Russian meetings at the assistant/under-secretary or deputy foreign minister level, suggest Prof. William C. Potter, founding director of the James Martin Center for Nonproliferation Studies, and Anton Khlopkov, founding director of the Center for Energy and Security Studies in Moscow. They also note that it would be worthwhile to resurrect a number of the arms control, nuclear energy and nuclear security working groups that were originally established under the bilateral U.S.-Russian Presidential Commission. Both Russian President Vladimir Putin and U.S. President-elect Joe Biden have said that, in principle, they want to invoke a provision of the New START treaty, write Anton Troianovski and David E. Sanger of the New York Times. One complicating factor, however, is that critical members of Biden's cabinet may not yet be confirmed by the Senate in time for the negotiation.