PREVENT is pretty dire, though.

I agree it's a hard problem, but getting it wrong is going to lead to the Northern Ireland situation: overreaction by authorities creating political prisoners who will be martyrs to their cause. Bobby Sands is still a hero to many.

> there is nothing effectively you can do because no law has been broken until there's evidence that they start assembling the components for the bomb or whatever

Sure, but that is basically where we as a society have agreed the line is drawn for decades. Otherwise you start prosecuting people for "sedition". And it'll inevitably get used against peaceful leftwing groups and not against radical xenophobes, etc.

Thanks for broadening the discussion, authorities are a construct of our society that have come about usually in response to a need, they are mostly funded using our taxes and the output of the state's productivity, directed by our politicians, administered by our civil service and executed by employees of the state, they are not separate to society, they are within society, we made them and we influence the authorities behaviour by our actions. Trust is the glue that holds this together and transparency is the mechanism by which trust can be earnt. I'd like to see some strong progress in tools to visualise and inspect these systems, a way for me to connect the dots, the better these systems are, the more support they can be in demonstrating where transparency is lacking, open big data is helping, and it's exciting to imagine that a community led project could create a more complete picture of the systems we live in than we've ever had, if we can do that then perhaps there would be a better understanding of the constraints under which the authorities operate and the actions they take would have context.

Then they should create a program where specific individuals can placed on a deradicalization program and be banned from extremist material. And then make it a crime to view the material while you are on that program.

2) of course it's ok, it's a sport? Injuries happen in sports. Particularly violent ones. Myke Tyson would probably break my skull as well if I was ever so dumb to get in the ring with him. There aren't only two genders just look at Caster Semenaya https://www.theguardian.com/sport/2016/jul/29/what-is-an-int... or look at this mess (and that's only part of it): https://en.wikipedia.org/wiki/Hermaphrodite#Humans

The article is about a proposed change of law in the UK. Your commentary about the US seems rather off-topic.