I doubt it's back channels (Wikileaks has repudiated that before: https://twitter.com/wikileaks/status/782963650579529730 https://twitter.com/wikileaks/status/7

I doubt it's back channels (Wikileaks has repudiated that before: https://twitter.com/wikileaks/status/782963650579529730 https://twitter.com/wikileaks/status/782963650579529730). Rather I'm guessing it's just speculation based on fact the John Kerry is currently visiting the UK.