Makes me wonder if there is a little more to the story than we have been told. It seems like a good move, but a bit specific...
I wonder if DC is doing the same.
If cell phones were used to activate the remote bombs in London, which is what we are all assuming (especially in the light of your info about stopping cellular in NYC), I still can't understand how the authorities are stopping cell service within the tunnels, etc, without disrupting related service areas. How does one do that? With a jammer? Or is it a much more compact and direct cell area and therefore a much simpler process like closing down a few cellular transmitters?
Sorry for the clumsy question. I do not know how this process works.