The arrests of two men in Georgia charged with attempting to peddle radioactive materials to would-be buyers is the latest in a string of such incidents spanning almost two decades.

Verbosity is one of the few tangible instruments the West has to try and influence Moscow. It has supplied some military support to Kyiv in the way of weapons sales. But it is in no position – be it NATO, Washington, Berlin, Paris, or the EU - to intervene militarily.  

Biden’s sanctions included the expulsion of 10 Russian diplomats alleged to be involved in spying and a bar on U.S. financial institutions buying rouble-denominated Russian sovereign bonds from June 14.