Weapons of mass destruction are the only proven guarantor of national security, the former Russian president has said More nations are likely to pursue nuclear weapons due to growing global instability, Russian Security Council Deputy Chairman Dmitry Medvedev has said. In an interview with Kommersant published on Monday, the former Russian president expressed pessimism about nuclear non-proliferation, stating, “the rift that has formed in the world order is pushing a number of states to find