“The Tory government was inviting Jeremy Corbyn to teach its own civil servants before David Cameron started claiming he was a security threat.
Veteran MP Mr Corbyn went into the Foreign Office – one of the most high-security buildings in Whitehall – to lecture staff about how government works.
The regular use of Mr Corbyn between May 2014 and June this year, before he became leader, doesn’t quite tally with his later depiction by Tory MPs .” http://www.mirror.co.uk/news/uk-news/jeremy-corbyn-taught-civil-servants-6992226
ukgovernmentwatch 