I think the KGB lied.
I know the KGB lied.
KGB hasn't told me they have lied. I know no proof that proves they lie. So....... I can't say they lie.
I don't know that because I've never heard of the KGB lying about anything. It was secretive but that's all I know. I'm sure it did lie at some point. I know the CIA did through RFERL.
About what though?