I'm not sure it is being completely ignored. Perhaps in the US it is, because everyone is on the ethanol bandwagon in an election year, just like the Emporer's New Clothes. Here was the cover story of the Economist, unlike Newsweek, which might have a US cover and ROTW cover, this was on the US bookshelves:

http://www.economist.com/opinion/displaystory.cfm?story_id=10252015

It is pretty much guaranteed that whenever anyone rants about how the MSM is completely ignoring an issue, you can find several MSM stories on the first page of Google about that issue.

About half the time people rant that the MSM is ignoring an issue, they link to an MSM story about the issue.