Preventing the spread of atomic weaponry is less in our control than we think.
Whereas the principal aim of American nuclear policy during the Cold War was to deter a strong and aggressive Soviet Union, the nuclear risks we face today stem from Russian weakness.
At one time conservatives like Castlereagh, nationalists like Bismarck and internationalists like Gladstone were all convinced that international order would be torn apart unless the interests of Great Powers were respected and kept in balance. Th