Olivia Solon reports to Wired UK on Tim Berners-Lee (pictured; see also "Tim Berners-Lee Defends Net Neutrality" - here) speech during during W3C on the UK government DPI based mass surveillance plans ("Communications Capabilities Development Programme" - here):
".. Somebody clamps a deep packet inspection (DPI) thing on your cable which reads every packet and reassembles the web pages, cataloguing them against your name, address and telephone number either to be given to the government when they ask for it or to be sold to the highest bidder -- that's a really serious breach of privacy .. DPI used to be impossible because processors weren't fast enough, but now your router can understand which diseases you think you might be suffering from .. People confide things in the internet by the searches they do. Some things they wouldn't tell anyone else, even the people they love the most, until they've -- for example -- checked the lump is really a cancerous lump. If that information was acquired by someone who wants to blackmail you, you are toast".
See "Tim Berners-Lee: deep packet inspection a ‘really serious’ privacy breach" - here.