There is no reason why a firewall would be needed to enforce that kind of laws, just as there is no need for one to enforce the stricter European privacy laws.

There is no reason why a firewall would be needed to enforce that kind of laws, just as there is no need for one to enforce the stricter European privacy laws. We're not talking about rogue websites here, but about established businesses that could be fined, or sued, etc. if they din't comply, as is usually the case.