You make NO sense whatsoever in a single word you write about the F-35.
Industrially alone the UK has such a stake that withdrawal is unthinkable
Okay, well try this :-
Defence jobs at risk as MoD drops jump jet fighter engine - Telegraph
...and I'm sure this is just the first overture in a long saga. It smacks of a panic compromise which suggests (does it not?) that the whole programme is in danger of being dumped - kinda like I said really
