Interestingly the only way to transport ethanol is in a tank of some sort. It picks up water very easily so must be carefully transported. It also carries less energy than petrol and has been blamed for engine damage where it has been added to the petrol supplies.
Some interesting info here
http://www.businessweek.com/technolo...519_225336.htm http://www.frontpagemilwaukee.com/si...&mname=Article http://www.news.com/5208-11392_3-0.h...252274&start=0
There is also the impact on food supplies. So if the choice is food or fuel I guess we'd have to go for fuel.