On the channel 11 new links that you posted, over on the right, there is also a link to a video of a suspicious device found at a QT (gas station) and was detonated by police. No details, but they said it was not overly dangerous, but intentional.
"...but they said it was not overly dangerous, but intentional."
Okay Mr. Officer, since these little ol' things are harmless, would you mind holding it while I get help?
A common IED in Iraq is an explosive device made of a soft drink can which are called Pepsi Bombs by the troops. I imagine plastic bottles are just as easily rigged. Yes, they'll hurt you.