That's why it has to be done gradually and intelligently, but the sooner we start the better. Defense spending has to be measured against the threat level, not any imagined economic gains. Even the technology adapted to civilian needs could have been developed more efficiently by private enterprise. Wars basically take some of our best people, ship them overseas so they can't do us any good and put them to work wearing out some of the most expensive gear on earth. Some are killed and some require medical assistance for the rest of their lives. Again, if they are protecting us from foreign conquest, it's worth it, but there is a real chance they are merely providing our enemies with a target rich environment. In any case, the "War Keynesian" economic model is simply defective, and it stands to damage this country worse than all the camel jockeys and goat herders you can shake a stick at.
I don't claim to be qualified to evaluate today's threat level, and despite all the opinions being given, I doubt if anyone else here is either. When Bush said "Afghanistan", I said "Gee, I never thought of that, but I guess it makes sense". Then came Iraq, and I though, "Well, it's probably just the oil, but they know what they're doing, it will be over soon". WRONG! Now it sounds like we are flying close air support for a bunch of no-names in Libya, and I'm getting a bad feeling. The colonel cited above seems to know his stuff. He may not have all the answers, but this is a discussion we really need to have.