As the millionth Syrian refugee crosses the border, Brigadier General Salim Idris, head of the Free Syrian Army, is asking the EU to lift its arms embargo to help Syrian rebels protect themselves.
He says 150,000 armed rebels are in Syria now, but 200,000 more are unarmed and willing to fight.
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Wintry scenes across the UK this late in April have not been seen since the mid-1980s.
The Labour leader will also announce an inquiry into anti-semitism and other forms of racism to be chaired by Shami Chakrabarti.
A switch in the wind direction will mean the unseasonably bitterly cold air of the last few days finally gives way.