In many cities, specialized police units either already have or are in the process of being issued cell phone jamming units.
They are being issued with these sorts of scenarios specifically in mind. If the police think there's a bomb somewhere, set to be triggered via cell phone, damn right I'd want them to block the cell phones in the local area to keep it from going off.
The problem with cell jamming technology isn't when it's being used to stop bombs from going off, the risk is that it'll be used for more trivial purposes.
They are being issued with these sorts of scenarios specifically in mind. If the police think there's a bomb somewhere, set to be triggered via cell phone, damn right I'd want them to block the cell phones in the local area to keep it from going off.
The problem with cell jamming technology isn't when it's being used to stop bombs from going off, the risk is that it'll be used for more trivial purposes.