LEAD:
Russia has dismissed the UK Prime Minister's accusations that it was 'highly likely' that Moscow was behind the poisoning of a former Russian spy in Salisbury. Moscow has until midnight on Tuesday to explain why a Russian-made nerve agent was used. Julia Lyubova reports from Moscow.
IN: There was a strong reaction…
OUT: SOC
DUR: 53'
GENERIC: http://www.fsnradionews.com/feeds/0313spy-jl-generic.mp3