Was Scargill right?

At the time of Britains miners strike Scargill was widely lambasted in parliament and the media for claiming there was a secret plan to close over 70pits.
Thatcher and MacGregor both insisted repeatedly that the only plan was to close 20 pits which were not profitable.
Events after the strike did lend some weight to Scargills claims.

Cabinet papers newly released under the 30 year rule do seem to show that he was 100% correct on that issue. And that the politicians calling him a crazed fantasist over the claims knew them to be true.