A Founder at the nuclear weapons watchdog, Tri-Valley CAREs; currently serves as Senior Advisor. Monitors Livermore Lab and the U.S. nuclear weapons complex. A Green  Lab in Livermore, and a Safer World  Tri-Valley CAREs works to strengthen global security by stopping the development of new nuclear weapons in the US and promoting the elimination of nuclear weapons globally. Nuclear weapons decrease rather than increase human security. Nuclear weapons pose one of the great social, economic and ecological challenges of our time.