We are dangerously close to a world without arms control agreements. That is what some of the most experienced U.S. defense and disarmament experts are now warning, and a recent detailed report from a U.K. House of Lords Committee fully shares their alarm. The implications for the increasing risk of nuclear weapons use, tactical or strategic, are direct, immense and horrific. The disarmament process, on which the previous generation put so much hope, has come to a halt and what is termed "policy paralysis" has set in.

Whether these warnings are going to attract the urgent attention, and the action, they deserve is an open question. Of course in the Pacific Rim region the nuclear threat seems obvious and omnipresent, with unpredictable North Korean leader Kim Jong Un's ongoing missile-launching activity still looming over nearby states, notably Japan.

But in the West it is quite different. A thick layer of complacency surrounds Western opinion about arms control and nuclear risk, built up from assumptions that the basic architecture of global arms stability of the last 70 years still works and stays firm. Preoccupation with other issues, such as Brexit, immigration and global warming, blots out most media coverage of nuclear matters, even though one nuclear slipup could kill millions in minutes.