Governments already directly own CAs. The mitigation for the attack you outlined...

		MichaelGG on Feb 28, 2014 \| parent \| context \| favorite \| on: Seven People Who Hold the Keys to Worldwide Intern... Governments already directly own CAs. The mitigation for the attack you outlined is that such attacks will be detected, and the CA will get blacklisted. That may not actually work in the real world.