How To: Zap Bombs Before They Blow Up

"A combination of technology and tactics has cut the number of improvised bomb attacks in Iraq by more than 50%. Some of the gear blocks triggering signals, before they can set an explosive off; some protects troops from blasts' impact; some looks for bombs' signature, in the trash and dirt that line Baghdad's roads. But perhaps the least-discussed gadgets are ones that blow up improvised explosive devices, or IEDs, before they're supposed to strike."
Wired

The trusty TV remote approach. Just as I said.