He asked for a show of hands: Who wants to set a date to begin side-by-side electronic trading with open outcry?

FORBES: Last one out, shut the lights

Mr Obama wants a US drawdown of troops to begin next summer although US General David Petraeus - who this week replaced the sacked commander of multinational forces Stanley McChrystal - is among those insisting that has to be based on conditions on the ground.

BBC: Cameron wants troops home from Afghanistan by 2015