Shia rage in Basra, over electricity that goes north to Baghdad. Joel Wing has more, including that the trouble spread to Nasiriyah. He also provides a short history of the Iraqi grid since 1991, including the fact that the first Gulf War reduced capacity to the level of 1920. A few years ago, even suggesting that 1991 damaged anything marked you out as an extremist.
From the same source, details of the raid on the Iraqi Central Bank. Central banking is not a trade that usually demands physical courage; Ahmed Rashid documents a rare example of the contrary with the Taliban governor of the Afghan central bank who was summoned to the front and eventually killed.
On this occasion, the interesting thing is that it's a complex, integrated attack. Suicide bombers exploded at the entry checkpoints. Infantry charged the breaches and stormed the building. Snipers established themselves on the roof, and other infantry may have created stop-groups in the streets, all in order to block the response.
The attackers destroyed files and computers and killed people. But they didn't take any money. As Masaryk said and Mao quoted, don't lie, don't steal.