Slip the watchful eye of the FSB? “Slip” sh*t. They more than likely sent them there.
“trouble has been conveniently steered away from Russia and into the Middle East, leaving many analysts to wonder at how even well-known clerics under 24-hour surveillance managed to slip the watchful eye of the FSB.”
It might be more sinister info about the Boston Marathon bombing: http://nasha-canada.livejournal.com/1685716.html That would explain why FBI did not get any further info about the bombers.