BP spill well pronounced dead

BP’s blown-out Macondo well in the Gulf of Mexico is “effectively dead," according to US authorities. The news comes 152 days after the explosion on the Deepwater Horizon drilling rig that caused the world’s largest accidental offshore oil spill. Sylvia Pfeifer, energy editor, talks to Daniel Garrahan about the political and financial costs to BP and whether it can continue to do business in the US.