"The so-called Islamic State has claimed responsibility."
There is no meaningful distinction between that and the people to whom Donald Trump paid court on Sunday.
Theresa May and Boris Johnson refuse to rule out intervening on its behalf in Syria, even while purporting to fight it in Iraq, a border that it has rendered meaningless.
But Jeremy Corbyn does rule that out, and he is a longstanding enemy of its Saudi mothership.
"The General Election campaign has been suspended," indeed.