NY Times today has an OP Ed column pointing out that actions of BP and other large corporations are eating away at the U. S. political system.

As I understand it, the dispersants are being applied near the blowout, thus have no effect on the oil already in currents.

The EPA has stopped BP from using the dispersant they were spreading because of its toxicity. I don't know what will be used in its place.

The Corexit 9500 now prohibited had a glycol component, which, if anything like the glycol of antifreeze, is extremely toxic- spills in garages and driveways have killed pets that licked it up (is has a sweet taste).

Dispersants of any kind in a feeding ground could be very harmful to birds and marine life and to humans and animals who feed on marine organisms.