Is this for real? "Dire Disaster Realities .. In The Gulf Of Mexico"

If you're worried, "do the math": compare the methane coming out of the well to the atmosphere in the general region; I haven't, but I gather the former is very small in comparison to the latter.

One reason I haven't done this is that if this was a big problem you'd expect the people and ships above the well to be having problems, but we haven't heard of them needing to use SCBA (http://en.wikipedia.org/wiki/Self-contained_breathing_appara...). It would take quite a bit of arguing to convince me that the threat would be even greater 50+ miles away on land.