It seemed to have come from the fsb, though no one could definitively prove it.
Rather than the fsb, the successor agency to the KGB, most observers blamed a pro-government youth group.
The detainee was brought to fsb reception and after certain procedures passed to official representatives of the U.S. Embassy.
Now not only the fsb but any of six to seven other special services in Russia have permission to spy on the opposition.
FBI Director Robert Mueller has called his Russian counterpart at the fsb twice today, an administration official said Monday.
Col. Strelkov has admitted that he only quit working with the Russian Federal Security Service (fsb) in May 2013.
The Ukraine government is demanding from Moscow the identity of the Russian fsb officers who acted as advisers.
The fsb would have been particularly interested in Tamerlan because of his Chechen heritage.
She missed the rampant spying on its own citizens by the fearsome fsb.
But the fsb has far more power to eavesdrop on Russian and foreign citizens than the FBI or the NSA.