3 October 2016
Image copyright AFP Image caption Plutonium goes into the warheads of nuclear missiles like these Russian Topols
Russia has suspended an agreement with the US on the disposal of surplus weapons-grade plutonium, the latest sign of worsening bilateral relations.
In a decree, President Vladimir Putin accused the US of creating "a threat to strategic stability, as a result of unfriendly actions" towards Russia.
Moscow also set pre-conditions for the (…)