It only takes one dummy...

There is loads of stuff on the net. Both good and bad.

Before the jihadi manual there was the jolly roger cook book.

The internet is a relatively uncontrolled medium, and this sort of stuff will always be available, under one guide or another.

"For too long, we have been a passively tolerant society, saying to our citizens 'as long as you obey the law, we will leave you alone'" - David Cameron, UK Prime Minister. 13 May 2015.