South African artist William Kentridge has set up "The Refusal of Time, " a series of video screens in Kassel's former train station near Track 13, where Jews were once sent to Auschwitz.

WSJ: What's On at Documenta, From William Kentridge to Shinro Ohtake

UDA's announcement this time was undermined by the refusal to hand over its guns.

ECONOMIST: Violence threatens, but less than before

Then there was the refusal of the prime minister of the time, Tony Blair, to state whether his son Leo had received the triple vaccine - on the grounds that this would invade their child's right to privacy - which added to the controversy.

BBC: MMR: How parents feel now about avoiding jabs