Reply #1: They ramble a lot.

[bemildred]

There are three different threats to consider:

1.) Script kiddies and the like are out there in their legions, and will continue to be. This is not terrorism though, more like vanadalism, opportunistic exploits.

2.) Military attacks in the context of cold or hot war, with the intent of disabling enemy C4I capabilities. This is very real. How effective it would be would depend on the extent and manner of use of C4I capabilities. But this is not terrorism either.

3.) Terrorism, attacks on civilian infrastructure originating in non-state political groups. These could be aimed at military targets too, but civilian targets seem more likely, easier and more effective for the purpose of attracting attention and instilling fear. I would agree with some of these fellows that it seems a bit of a stretch. Explosives are just so much more ... explosive, if you see what I mean, a much better attention getting device. But you never know, it could happen.