I watch with despair as Trump tears up the Iran Nuclear Agreement.
However I wonder whether this is the same as trying to hold back
technology in gliding competition: no flight computer, no GPS, no
moving map, no Flarm display, no online weather, no nuclear bombs?

It is probably inevitable that belligerent regimes (including the US and
GB) will get these weapons and possibly use them.

Going to throw myself off Beachy Head

Jim