[ErnstStavroBlofeld]

Why not give them a blank check and say to Taiwan and Israel take what ever American technology you need to defend yourself.

[Tainan]

As for Taiwan, the reason to "Just Say No" to that kind of blank technology check is the fact that it, the technology, would wind up in the PRC/CCP within days, if not hours, of being transferred to Taiwan/ROC.
The required security is not, and has never been, in place. It would be sold/transferred almost immediately.
This is a problem.

Israel is a completely different story. They pretty much have their lids screwed down pretty tight and compartmentalization in place.

Of course this is just my opinion on things.