Image caption, Joan Bailey, whose branch is mentioned in the report, said its contents made her "very angry"A draft report uncovered by the BBC shows the Post Office spent £100m fighting sub-postmasters in court despite knowing its defence was untrue.The document reveals the Post Office was shown evidence by 2017 that losses could be due to errors in the Horizon IT system or remote tampering.But it kept arguing in the Bates v Post Office Ltd case that theft or mistakes by sub-postmasters must be...