That's the government, not the ISP taking a look at the "traffic" though. If some random british ISP decided to censor twitter, who'd care to stay? As long as

That's the government, not the ISP taking a look at the "traffic" though. If some random british ISP decided to censor twitter, who'd care to stay? As long as there's a split between powers and a choice, there's just as little need to restrict that as there is to restrict how for example spam filtering works.