Brexit, Facebook, Channel 4: Everything that matters this morning

UK secures conditional 21-month Brexit transition
Britain has secured a provisional agreement on a 21-month transition period for Brexit, causing a rise in sterling.
David Davis announced the “significant” deal on Monday which saw the UK and EU publish a joint withdrawal deal that will allow Britain to retain the benefits of the single market and customs union at the cost of some sovereignty.
According to the conditional deal, of which 75% is agreed, the UK will lose i