A human rights activist has raised the possibility that a Russian researcher convicted of spying for U.S. intelligence services could be exchanged for one of the suspects in the recent Russian spy scandal in the United States.http://feeds.feedburner.com/~ff/rss/...?d=yIl2AUoC8zA http://feeds.feedburner.com/~ff/rss/...?d=7Q72WNTAKBA http://feeds.feedburner.com/~ff/rss/...kU:V_sGLiPBpWU http://feeds.feedburner.com/~ff/rss/...?d=qj6IDK7rITs http://feeds.feedburner.com/~ff/rss/...kU:gIN9vFwOqvQ
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