In 2016, the UK realized they were loosing the war on terror as they found that kids as young as 4 where helping the extremists, inventing new forms of concealed explosives, known as "cucumber bombs", and designing plans for a "terrorist house".
Not afraid to taking action, the UK home secretary decided to reinforce extremism detection in schools, especially with younger children. The "No line left behind" act was passed, which put a heavy emphasis on the surveillance of pupils. Suspicious activities included misspelling words, drawing unrecognizable shapes that could be interpreted as some form or another of IED, or coloring outside the lines. But the results of the program shocked even those that put it in place.
It soon became clear that, having indulged in the above named suspicious behavior, a vast majority of britains youth was clearly on their way to blow up an airport, or other public and populated place of their choosing. Indeed, it seemed as if the whole populace of the country still in compulsory education was waiting for the chance to plunge the world into chaos. In response, the british government decided to change their school system.
Instead of compulsory education, british children are now subject to compulsory incarceration. The whole population aged 4 to 18 are put into prisons, where they are taught not to blow shit up, and trained educators try to get them to repent for their "original sin". The ministry of public education has recently anounced that the program was a huge success, with only a handful of potential criminals acutally managing to kill people once they got out, and the USA as well as Japan have announced that, following said success, they will implement similar policies.
A group of hardcore hippies keeps maintaining that putting kids in prison is not the right solution, but like every time before now, nobody gives a shit about those pot-smoking wackos.