Inside the Bubble: Warlock vs. IED's
Troops try and stay 'inside the bubble' of the Warlock radio jammers, the latest defense against IED's. They don't defeat the bomb, but defeat the RF devices (usually wireless phones or cell phones) used to trigger them.
On a patrol near the town of Balad this morning with 1-8 Infantry, the driver of the Humvee I was in appeared to be tailgating the Humvee in front of ours. Later he confessed that he was trying to stay in what he called the "bubble", the effective range of the Humvee's Warlock radio jammer.
Warlock is a family of systems designed to counter improvised explosive devices, many of which are triggered remotely by radio.