Thanks for the link! I will question the relevance of the first half of the talk (about CAs and SSL) in 2015, with TLS and the CA/B Forum. But his main thesis

Thanks for the link! I will question the relevance of the first half of the talk (about CAs and SSL) in 2015, with TLS and the CA/B Forum. But his main thesis about trust agility is quite spot on. I'd never considered it before, and am going to look into Convergence and TACK. He raises a fantastic question - the duration of trust is a real concern.