With oil beginning to wash ashore in Louisiana, Barack Obama has assured his citizens that his administration is doing all it can to contain the spill.
The Guardian's Ed Pilkington is on the banks of the Mississippi and tells us that workers who depend on the rivers and estuaries are taking matters into their own hands to prevent oil coming ashore.
In the studio to discuss the full implications of the disaster in which 11 people died, we have our energy editor Terry Macallister, environment correspondent David Adam and on the line, our US environment correspondent Suzanne Goldenberg.
