While Star Wars in its current iteration may be a marginal (read: unsastisfactory) solution, the age of the ICBM as a viable nuclear delivery method is coming to an end.
While targetting may be upgraded as well as lift capacity over current delivery vehicles, it is still 1960's technology.
Boost-phase ICBM targetting and neutralization has been in research since Reagan, and the Russians simply cannot afford to run with the U.S. pack anymore in an arms race.
If it's perceived to be a major threat, we can rest assured measures will be taken to minimize it.
Could it be that the USAF has plans for offsetting the saved weight of fuel in a scramjet delivery vehicle?
Yeah, the same 60's technology that landed us on the moon.
I don't mean to be flip, but your logic is...well...illogical. A defense system can work against rogue missiles from terrorists and accidental launches, and we need it...but it is useless against this "60's technology" that can quite nicely erase us from the planet earth. And it will remain useless against an all-out overwhelming nuclear attack...in our lifetimes and maybe even in our children's lifetimes..
Methinks you have too much faith in "modern" technology. And many here have way too much faith in the charity of the Russians!
Star Wars will make missiles obsolete. This move by the Russians is either desperation or a first strike against US before star wars becomes fully operational. By the way the Soviets, I mean Russians, named their most lethal ICBM Satan.
"...we can rest assured measures will be taken to minimize it."
That is, if we have a responsible person in office, and good common sense people in the house and senate.