Russian 'double agent' named by Moscow Newspaper

A newspaper in Moscow has named the Russian intelligence agent it claims helped America break up a Russian spy ring last summer.

Ten Russian sleeper agents were arrested and sent back home, in the biggest spy swap since the Cold War.

It was the biggest US-Russian spy scandal since the end of the Cold War.

Col Shcherbakov had a senior role in Russia's foreign intelligence agency, Kommersant says; his job: to plant moles in the United States, secret agents deep under cover.

But at some point the colonel changed sides.

Quoting intelligence sources, the newspaper says Col Shcherbakov fled to America in June, just three days before President Dmitry Medvedev's official visit to the US.