I found the link below last summer from Al-Jazeera. It shows some active camouflage in action: the first part of the video shows what an IED can do to a tank (yikes!), and as US forces show up to help out, we see a guy show up that has some definite Predator-style action. He shows up towards the end of the video clip (around 2:58 for roughly 10 seconds), but when the red circle appears moving from right-to-left, that's our guy (I'm thinking Special Forces of some type) with the see-through duds. Watch for him coming out of the brush, crossing the wall and getting into the tank:

[www.liveleak.com]

msarnone1