This is over-the-top and forgets more than a few things (e.g. almost every desktop e-mail client can be easily persuaded to send e-mail in the clear); nonethele

This is over-the-top and forgets more than a few things (e.g. almost every desktop e-mail client can be easily persuaded to send e-mail in the clear); nonetheless, the basic point is sound. A more comprehensive solution - something along the lines of http://news.ycombinator.com/item?id=2047794 http://news.ycombinator.com/item?id=2047794 - would be needed, unless we are willing to reduce the internet to HTTP (well, SPDY, but that's basically the same thing).