4:49 PM
DefenseTech's Noah Schactman has posted a great story to Wired News about the iron-nerved tech-heads of a bomb disposal unit in Baghdad:

If ordnance disposal is the military's rough equivalent of firefighting, defusing bombs in Baghdad is like doing the job in a city of arsonists. ... Guerrillas in Iraq cobble together weapons from whatever they can find. A bombmaker in Mosul might use dynamite and a timer from a washing machine. One in Baghdad lashes artillery shells to a motorcycle battery and a cordless telephone. Insurgent cells swap tactics on Web sites, and when American forces catch on, the terrorists move to newer tactics.

UPDATE: Noah's gallery of photos taken while he was in Iraq on this assignment.