While a lot of military technology is important, I would note that if the budget is to be balanced, military spending is going to HAVE to be cut. Everyone talking about the budget likes to speak about capping/trimming/eliminating "non-Defense discretionary spending," which covers a huge range of government programs, the court system, the government's own operations... But the fact is, the deficeits are reaching a level where they're soon going to EXCEED the combined value of all that spending. In other words, the US government could outright shut its doors on everything but the military, close down the Capitol and the White House, along with the courts, and the money saved would STILL not balance the budget. That's because the Defense budget is
roughly half of all Federal non-mandatory spending. That's right, the DoD gets about as money as
every other department of the US government combined.
Granted, the MKV would have a use... But it's also a question of WHEN it'd have a use. Whose longer-range ballistic missiles is it going to intercept? As someone with a pretty extensive background in WMDs, this is a rather interesting and important question.
North Korea's? Their nuclear weapons projects have yielded relative duds, that like all early A-bombs, are too massive to load on a missile. Plus, the range on their missiles is still too poor to reach anything other than South Korea and Japan, which are too close for the MKV to really reach anyway, ESPECIALLY South Korea.
Iran's? Iran doesn't have anything beyond short-range ballistic missiles. Their best range is that they could strike Israel. So chances are the MKV would be useless for defending Israel, too. Plus, of course, Iran still doesn't have a nuclear bomb yet, and it'd be years before they could make one small enough to fit their missiles.
Russia's? Well, if you cut through their claims, it turns out that they only a single
Typhoon-class submarine in actual shape to go to sea and launch missiles, and it's been too busy with its silos full of dummy test drones for a new type of missile that won't see production for a long while. That leaves them with a number of dated
Delta-class submarines, (again with only a tiny number in any shape to do anything) and perhaps a couple hundred functional land-based ICBMs... And we know Russia's infamous history of their rockets exploding on the launch pad.
China's? Well, last I checked, China had all of 10 longer-range ICBMs capable of striking... Alaska or SoCal, so no loss.
Oh, they're also kept disassembled off of their launch pads, not in convenient silos that keep them ready to fire at a moment's notice. If they were assembling them with nukes, we'd have hours upon hours of time, plenty enough to run a sortie off of a nearby carrier to destroy the missiles before they could even be launched.
So, excepting the above, that leaves us with, uh, the UK and France? And I honestly don't expect the USA to go to war with either anytime soon. I mean, on one side you've got the UK, a very close ally... And on the other side, you've got France. FRANCE!
Yes, Robert Gates has announced that he's going to try to request a lot less money for the Defense Department this time around, potentially in hopes of curbing their ballooning budget; another casualty is that he's calling to cut off F-22 production after "only" around 200 or so, rather than the some 750+ that some wanted. Of course, this will likely meet opposition from some members of Congress, who like having all those millions of federal dollars going to plane manufacturers in their districts. So we'll see what happens.