"Slightly off-topic - isn't Emily Thornberry one of the most patronising MPs going? "
Indeed. If not the most patronising. Readers may recall the "WhiteVanManGate":
http://www.bbc.co.uk/news/uk-politics-30139832
This led to her resignation from Labour's front bench in November 2014. However, after the usual few months (eleven in her case) in political purgatory and she was appointed to Mr Corbyn's Shadow Cabinet. Promoted to Shadow Defence Secretary when Angela Eagle resigned three months later. On being appointed, Thornberry was interviewed by the British Forces Broadcasting Service (BFBS). She said:
"...I have a brother-in-law who's a general. I was actually made an honorary lieutenant colonel when I was doing court-martials [sic] when I was a barrister and so I have a certain amount of experience of the military there."
The Ministry of Defence denied this claim and Thornberry subsequently admitted she had thought she was made a colonel to have access to the officers' mess, not to appear in courts-martial.
And now here she is as Shadow Foreign Secretary, pontificating on why children get fat.