Actually, I've also come across some Russians who believe the FSB had a hand in the Moscow bombings, and No, I won't give you their names. Russia's brutal reputation for silencing its critics is richly deserved. I know you are loyal to Putin and the Russian government, so I've no doubt you would follow Putin's example and "rat someone out" for your own benefit.
Stavka, here's a joke devised by a Russian for you to amuse yourself with:
Q: What's the difference between the Russian Constitution and the US Constitution?
A: They both guarantee freedom of speech, but the US Constitution also guarantees freedom after the words are spoken.