A sarcastic tweet aimed at China and posted on the US Defense Intelligence Agency's Twitter account has fuelled a row over protocol at the G20 summit.
The tweet, which was quickly deleted, read: "Classy as always China".
When President Barack Obama arrived in Hangzhou there was no red carpet and he had to leave by a different plane exit.
There was also a row on the tarmac when a Chinese official shouted "This is our country!" as reporters and US officials tried to bypass a cordon.
President Obama called on reporters "not to over-crank the significance" .... http://www.bbc.com
