[zaphar]

We aren't talking about a system that requires 3 keys to get the data though. In order to be useful to the government they need a system whereby they can decrypt without my key. That means conceptually they need a second key that works all by itself.

You could split the second key so no single party has the whole key which would mitigate but you still have the same problem where you have effectively doubled your opsec problem.

Additionally if half the key is compromised that still greatly reduces the work required to decrypt the text.