Cyberspace operates according to different rules than the physical world.

The same principles of cyberspace that allow businesses to reach their customers directly also allow bad guys to reach businesses directly. Yet you can’t have governments get in the way of the latter without also getting in the way of the former. Sharing information among people at human speed may work in many physical contexts, but it clearly falls short in cyberspace. As long we continue to try to map physical-world models onto cyberspace, they will fall short in some fashion.