The City Of Westminster Counter Terrorist Focus Desk publishes a weekly briefing on safety called Griffin Weekly, full of useful advice. For example, this week's briefing contains these helpful tips on Anarchism: "Anarchism is a political philosophy
which considers the state undesirable, unnecessary, and harmful, and instead promotes a stateless society, or anarchy. Any information relating to anarchists should be reported to your local Police."
Right, that's my weekend sorted — I'll be down at my local police station, reading the works of Kropotkin aloud for the constables.
(More seriously: Seriously? These are the terrorism experts who are making official evaluations of risk and official plans to mitigate it? Seriously?)