Completely understand. the determination of one individual can move even a government.
There was a huge apathy both UK and USA, the event better called a disaster was cloaked in secrecy until well after the war ended, there were nearly 800 Americans killed in the exercise, but it was hushed up completely at the time, I can fully understand why, the effect on Moral within the troops heading fro the beech on D-Day would have been catastrophic plus the publics horror at this.
on Wikipedia, there is a load of info, try operation tiger plus the closely associated Battle of Lyme bay ?
The individual had hells own job getting permissions from UK Government who in effect owned the beach and the debris on it, the tank was in effect still in the ownership of the USA.
I recall that a relationship grew over a long time between the person who organised the recovery and display the recovered Sherman and the Official acting for and on behalf of the USA who was based in Hawaii, the Radio 4 programme made It clear that the USA Official was on side but had to toe the line.
As far as I know, this Sherman is still on display as a permanent memorial
makes you think?