Yeah, I don't know. Do you? It's a fair assumption they use email, right? And VPN is standard in most organizations. I never even mentioned the opposition. Dissidents can be non affiliated people, who is discontent with their government or feel oppressed.
Why is it relevant? I thought you were interested about foreign agents? Or is all the opposition foreign agents?
Please tell me, should it be possible to have privacy from the government in Venezuela? If so, how? If you only answer one thing, please do this one.