Thanks for finding an authoritative, and most of all - currently
valid - document on this subject of ethanol, Terry.
Ethanol is indeed a necessary and important (but not perfect)
resource for the "interim" time period between peak-oil and the
coming age of so-called free-energy...
Even if one of the genius inventors on Vo were to perfect a
commercially valuable device tomorrow (ZPE/LENR/Wind/Solar/Wave
etc) it would take a decade of mass production before much impact
at the national level was felt.
The archive is well worth downloading.
http://rael.berkeley.edu/EBAMM/EBAMM_1_0.zip
This "study-of-studies" should once and for all put the inane and
dated ravings of Pimentel and Ratzek to rest.
... in the words of our favorite pundits (of the Firesign
persuasion) they were in serious need of "regrooving" anyway.
Jones