Oh No, Regime Grade Cabinet Level Dumbness in sight
The Secretary of Lieberman's Mess mentioned he envisions a defensive system that "would literally, like an anti-aircraft weapon, shoot down an attack before it hits its target." Unfortunately, he wasn't referring to coastal batteries ready to target shoals of irksome jellyfish, but something to do with the innertubes. The intellectual wreckage is here -- CNN Junk Tech: Homeland Security seeks cyber counterattack system
An NANOG contributor wrote my first reaction to Chertoff's statement is that the antiaircraft barrage already exists, is called Windows XP Pro Service Pack 3, which is sufficiently fanatical on my machine that its uninstaller committed suicide.
Naturally, the Secretary of Lieberman's Mess did not mention the fact that 9 out of 8 computers in the Microsoft monopoly market zone have been, are, or will be, attack assets of anyone who decides to use them.