Greetings; I urge you to err on the side of caution when dealing with security, privacy and surveillance matters for the IoT. That is, minimize as much as possible the ability of third parties (public or private) to have access to personal information. There are other pending issues not address: Has anyone calculated how much energy is required to plug everything into the Internet. A half-trillion nodes will consume a lot of power, and how much 'intelligence' do we really need. And there is the issue of hacking. Anything connected to the web can be potentiall hacked. And, finally, and not so far out, is that once you have a critical mass of nodes there is a chance the system will become self-aware. So far, that has been the stuff of science fiction, but there is possibility. What are the implications of that? Thank you for this opportunity to comment.