The NSA, now little Britain?
When an individual uses a webmail service such as Gmail, for example, the entire webpage is encrypted before it is sent. This makes it impossible for ISPs to distinguish the content of the message. Under the Home Office proposals, once the Gmail is sent, the ISPs would have to route the data via a government-approved "black box" which will decrypt the message, separate the content from the "header data", and pass the latter back to the ISP for storage.
This is probably the best argument against Open Source and standardized protocols ever.
You now have a better chance with proprietary specs and security through obfuscation than with "super hard" established protocols.
I almost see a market for an "encryption of the week" subscription service, that gives you new 2 way encryption every week via a browser extension to replace SSL. Of course you would have to create a corresponding Apache module for it and get people to install it.