AS Q said let them dig their own graves!
Remember this:-
"The Sunday Times reported on that a Trident II D5 missile “veered off in the wrong direction towards America” after being launched from HMS Vengeance. "
https://ukdefencejournal.org.uk/serious-trident-missile-test-failure/
"The key point here is that the British deterrent does not have permissive action link control, which means it does not rely on the use of codes to fire the system. The UK’s Trident fleet relies purely on military discipline to prevent a launch."
https:// ukdefencejournal.org.uk/serious-trident-missile-test-failure/