Re: I hope this is a joke...
Apparently the standing EPA rule requires the solid fuel propellant used in the main stage of the minuteman (and any other rocket) to be replaced. That it happens to be pushing a set of 3 warheads in this case is merely the irony.
Also, the new fuel is heavier than the old, reducing the missiles range, so the current 3 warheads will be replaced by a single, smaller, lighter warhead. No news on what we're going to do with 1500 nukes.
I'm betting all in all that 1500 nukes buried somewhere, plus the net result of 500 detonations would most likely render a little carbon monoxide emissions a little irrelevant though...
The good news is that the whole shebang is bargain priced at a little over $2.5B.
Some good spin on this would be appropriate...let the terrorist nations know that we're willing to spend the equivalent of their entire military budget on making sure our nukes blow cleaner air on the way to them.
Be fearful when others are greedy, and greedy when others are fearful. Just another form of "buy low, sell high" for those who have trouble with things. This rule is not universal. Do not buy a 1973 Pinto because everyone else is afraid of it.