Litvinenko. The Daily Telegraph editorializes:

[T]he British government cannot be seen to accept a situation in which a citizen of the United Kingdom is subjected to a murderous attack under conditions that raise grave, and reasonable, suspicions of the involvement of foreign agents.

The Foreign and Home Offices must be seen to pursue this case with the greatest rigour and to the highest possible level, and to demand whatever explanations they feel are required from the Russian authorities. Otherwise, there will be a clear suggestion that Britain dare not offend a Russian regime that may hold much of Europe to ransom over energy resources within a decade.