You're right, but I didn't mean only phone calls and unencrypted email. I considered adding "or their equivalent back-doored technologies," but I hoped it would

You're right, but I didn't mean only phone calls and unencrypted email. I considered adding "or their equivalent back-doored technologies," but I hoped it would be clear. Using a compromised technology is the equivalent of unencrypted email and phone calls to whoever has the key. All it does is draw attention to how important it is to communicate in secret. This will be the Streisand effect of crypto.