Mr Obama

“the Deepwater Horizon rig exploded and sank on 20 April, killing 11 workers.”

“While Mr Obama has pledged to withdraw all combat troops from Iraq by the end of August, up to 50,000 are expected to remain there until the end of 2011 to help train and equip Iraqi forces”

“Mr Obama has for the second time postponed a trip to Australia, Indonesia and Guam”

“his third trip to the area since the leak began six weeks ago.”

“Mr Obama had previously visited Louisiana on three occasions.”

“This is Mr Obama's fourth visit to the oil-affected area.”

“In December, Mr Obama announced he was sending an additional 30,000 troops to help battle the Taliban insurgency in Afghanistan.”