[Koshkin]

> FSB is an intelligence agency

It is a security agency, a.k.a. the “secret police.” (It does, of course, spy on the populace.)

[stjohnswarts]

Basically the Stasi of Russia, no?

[andy-x]

FSB is former KGB, so indeed it is Stasi, but KGB may be even more familiar name from those times.

[outside1234]

They are, in fact, what the Stasi were modeled after.