The man British authorities charged with poisoning former KGB officer Alexander Litvinenko has responded with his own accusations.
Andrei Lugovoi, another former KGB officer, says Litvinenko was a British agent who was trying to gather compromising materials about Russian President Vladimir Putin.
Lugovoi said the British intelligence service MI6 was unhappy with Litvinenko — and might have known about a plot to silence him and frame Lugovoi.
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