I agree - that line from the article makes no sense. Not having NAT is awesome because NAT is a nasty hack that doesn't add any security. The tunnelling scenar

I agree - that line from the article makes no sense. Not having NAT is awesome because NAT is a nasty hack that doesn't add any security. The tunnelling scenario is valid though - because they add quite a bit of latency so you might not want to use it for everything.