This assistance is targeted to avoid the crisis from escalating in Ethiopia, Kenya and Somalia where the lateness and insufficiency of rains are expected to have a significant negative impact on crop production.

WHITEHOUSE: The White House

No-one connected to the show has commented, but the venue apologised for the late start via its Twitter feed saying: "Justin Bieber is now on stage and apologises for the lateness of his show".

BBC: Anger as Justin Bieber late for London O2 gig

And is it time for the President, given the lateness of the hour, to say something about what he would be willing to accept, perhaps not including a tax on carbon -- a price on carbon?

WHITEHOUSE: Press Briefing