Britain wants to try him for the murder by radioactive poisoning of an exiled ex-secret policeman, Alexander Litvinenko, in London.

英国想在伦敦为流亡的前秘密警察亚历山大·李特维年科(Alexander Litvinenko)遭放射性中毒谋杀案对他进行审判。

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Around 700 people had to be tested for radioactive poisoning but none was seriously ill.

BBC: Who was Alexander Litvinenko?

Ben Emmerson QC said 700 people had to be tested for radioactive poisoning.

BBC: Alexander Litvinenko murder was 'London nuclear terror'

Popular fear of radioactive poisoning and difficulty of understanding and explaining the science seem to compel congenitally cautious politicians and bureaucrats to punishingly restrictive policies and regulations.

FORBES: Radioactive Rice and Sudden Acceleration? How About Over-Reaction and Irresponsibility?