he didn't add anything new to the discussion but his opinion. Crypto scholars are excellent at cryptography and security theory, but when it comes to actually implementing secure systems (exception being crypto algorithms), and securing systems, Crypto scholars are horrible. For example he mentions that it would be better to just find an existing vulnerability instead of planting an FBI backdoor in the OpenBSD code: good luck Schneier, obviously you don't know that much about OpenBSD security culture and history. Plus the NSA has a history of putting backdoors into solutions. This is just my opinion from experience.