you aren't a US citizen working in the defense sector
how about US citizens working in the dildo-production sector (OK, all the dildoes come from People's Republic)? Its THEM who pay to the defense sector. Its not the Polish and Hungarian taxpayers who'll pay for the stuff. It will be you, buddy. The thing is, to your arms industry people, American taxpayers dollars are as fine as that of the Polish taxpayers dollars. The USA doesn't earn a dime on the thing; the money changes hands within the US flying from your pocket to the pocket of the arms industry folks. Don't try to present the Missile Defense project as a lucrative deal for the US. The one who pays for it is you, not the Poles.
you aren't a Polish citizen who just became a little more uncomfortable after the Russian-Georgian war.
uncomfortable hardly. Few see the Georgia war as an omen to Poland. And then, if a Pole were to perceive a military threat from Russia, the missile deal is the most extravagant way to respond to it. In the prospect of a Russo-Polish war, that deal changes nothing.