Don't get excited but this is probably not evidence of the JIN in Iraq. Most of the trucks and Humvees going to Iraq have been up armoured, especially the undercarriage. Small IEDs should not penetrate.
I have no doubt that JIN's are in IRAQ & saving lives by locating & detonating IED's!
With only 12 JIN's at this time, The DOD would be smart to use them in the highest insurgent density area, which are off limits to Media Personnel, thus no chance of media exposure yet.
Also, the element of SURPRISE stays with the Military for a longer period of time, by keeping JIN's out off the Lam Light, thus saving more lives, which is far more important than announcing them to the press!!!
An announcement will come, until then, IOTN will keep manufacturing JIN's for the $ 100,000.000 contract!