Actually, we have had the bullet proof vest on for some time, Patriot 3 is operational in the US.
This is a quicker reacting system we will provide for Europe, and its not in place yet. It's like there is a third neighbor (Europe) between the two and they will shoot at him if he tries to put on the bullet proof vest we gave him.
I haven’t been following this stuff for many years. I just think back to all the “it will never work” comments back at the start of the SDI programs. Guess it does work. If it didn’t the Russians wouldn’t be so worked up about it.