Yes, they're trying large quantities of both those types of bacteria as well as chemical dispersants. Unfortunately, the effect that these chemical/biological agents will have on the ecosystem cannot be predicted. However, it probably can't be worse than having all of the oil seep into coastal wetland habitats.
Dual-Booting Windows 7 and Ubuntu 9.10
"Mentat, solve thyself." ~ Dune
I follow the Path of the Beam.