BP doesn't want to plug the gusher: it want's to capture the oil for its bank account. For that, it would poison the entire ocean. Here is how to plug the thing, using a U.S. government drilling ship (Glomar Challenger or Glomar Explorer): 1) 1) yank off the sieve cap now in place (capturing ~10% of the gusher??--ridiculous); 2) Run a drill shaft down, tipped with a small bit and backed by a large toggle bolt. Aim it into the well-head (into the teeth of the gusher, as it were) and cut through the non-functional blowout-preventer (another sick oil-company joke). 3) When deep enough into the existing pipe or rock below, open the toggle. 4) Using the toggle as an anchor, push graduated plugs down the shaft, first to center the shaft, then to plug the well-head. 5) Once that is accomplished the thing can be buried in thousands of tons of rock.

I have little confidence in the expert opinions of "experts." I wouldn't feel surprised, though, were the spewing to continue until such time that there is a veritable sea of practically pure oil. This is surely a recurrent, wet dream of the Oil Royals, beyond REM's wildest.