I'm torn on this for several reasons. First I think it's a good move, particularly if there is a performance concern because now the military DOD can get a good hands on look at the aircraft before deciding whether or not to scrap as has been proposed by the perpetually shortsighted Robert Gates. Second I don't want the US to invest in the 35 while shitcanning the dramatically superior Raptor, another terminally shortsighted decision by Gates. We do need CAS aircraft to replace the aging Harrier, I'm just not sold on another single engine VSTOL. Whatever, make the swap.