Remember this famous quote from President Reagan?
As evidenced by this video, the regularity of unintended consequences can serve as a pretty good sign that a bureaucracy has become bloated.
According to the AAA, "The Environmental Protection Agency (EPA) and gasoline retailers should suspend the sale of E15 gasoline until more is done to protect consumers from the potential for costly auto damage and voided warranties."
When ethanol was first introduced as a gasoline additive (Gasohol) years ago, I recall that there were problems with fuel leaks due to incompatible fuel-line components. This was bad enough in automobiles, but the situation was downright deadly for boat owners. Gasoline vapor is heavier than air and the vapor will sink to the bilge in a boat creating a potential explosion if not detected prior to the vapor contacting a source of ignition, such as when an improperly sealed electric motor starts up. Gasoline is arguably the most hazardous substance that you have on a boat. The hazard is somewhat mitigated with the use of diesel engines, but most cruising sailors still carry gasoline for the dinghy motor; be careful where and how you store it. Anything that threatens the integrity of a fuel line or container needs to be dealt with promptly.
-fl