Adam Curtis's latest piece for the BBC starts out as a strange history of the role that the Daily Mail had in the formation of the British MI5 spy-agency, but then veers into an amazing history of MI5 brutal, awful, terrible record of incompetence, foolishness, self-sabotage, and waste. It turns out that the MI5 owes its origins to a German spy-scare the Mail whipped up 1910 by publishing a serialized novel about a fictional German invasion of England (the route of the invasion was tailored to pass through towns with large populations of Mail subscribers). This led to thousands of impressionable Mail readers writing in, saying they'd seen German spies out and about, and they demanded that Parliament Do Something. And so, MI5 was born.
But as I said, this is just the start of the story. Following on from its weird origin, MI5 spent generations cocking up, framing people, missing double-agents in their ranks, and generally wasting tons of money on paranoid losers who never caught a spy. Curtis is brutal in documenting the depth of MI5's failures, from its storied roundup of a "German spy ring" in 1914 (decades later, it emerged that none of the 21 "spies" were actually spies) to its failure to spot the incipient demise of the Soviet Union, to its hilariously evil false espionage accusations against 33 Iraqi students in 1991, none of whom were spies.
Curtis builds up a picture of spooks as neither evil masterminds nor brave sleuths, but as banal incompetents. Read the rest