Better Yardstick
The name of the game is now lets get back to "business as usual". Oil below the surface is not unsightly, it does not smell, it does not directly kill birds, it will not stick to you and will likely not reach your beaches. Perception is reality and if oil is not seen or felt it is just not there. With jobs on the line any politician or government representative will be eager to downplay any presence or effects. The long term damages to fisheries and wildlife are yet to be seen but it seems the blow to the much larger oil and tourism industries has been averted. The rush to economic recovery is on and any forensic scientific studies and predictions will not make the headline page. Sailors seem happy, they are already planning trips in the area; what better yardstick do you want.
I agree with you, Benny, that it is important for us all to get back to normal. However, I'm not sure I am following your yardstick analog. The current yardstick that is being pushed by the Govt and BP ignores the unknown consequences of a huge plume of subsurface oil just because things look good right now and on a superficial level-- I do want a better yardstick.
Fortunately while the rest of us are getting back to normal -- which is a good thing for us all, there are scientists that are applying another yardstick that will determine the safety or danger of the subsurface plume(s). Or at least track and monitor it until we do know enough. I am simply suggesting that we shouldn't buy into the govt and BP snow job that the oil has just disappeared and we can all forget about it in short order.
"Trust but verify" -- Get back to normal, and trust that everything will continue to keep cleaning itself up, but verify at the same time whether our current understanding about oil spills is actually true.
(case in point, no one had ever imagined that sweet crude coming out of the gulf would ever sink--oil floats, right? However those previous understandings are being proven wrong this time, as a number of factors are causing the lighter than water oils to actually sink or suspend in the water column.)
I think that would be a reasonable approach. (as opposed to issuing drilling moratoriums wily-nilly

)