James Hill actually said...

The Department of Defense is required by statute and policy to launch National Security Space (NSS) payloads on U.S.-manufactured launch veh...

We've long experienced interactions with the Renewable Fuel Association.

I'm not an expert on engine technologies, but I do know Brazil, even though they have 2/3 the population of the United States, uses I believ...

So there have actually been some recent studies that have shown that the increased use of ethanol in Brazil has worsened their air quality.