I'm also not sure why it's on hacker news, but his blog post are always wonderfully detailed and fascinating.
Perhaps this is more appropriate for hacker news though:
http://en.wikipedia.org/wiki/All_Watched_Over_by_Machines_of...
I agree, even if you don't agree with Adam Curtis's politics, his documentaries are very thought provoking and well worth watching. Some of my favourites include "The Trap: What Happened to Our Dream", "The Century of self", "Pandora's Box", "All watched over by Machines Loving Grace". If you enjoyed this particular blog post, check out "The Power of Nightmares".
'The Loving Trap' (2011) is a good place to start exploring this visionaries ground breaking work...
http://www.youtube.com/watch?v=x1bX3F7uTrg
Why is this on hacker news?