The FDA will of course counter with:
"We are concerned about the perception that electronic cigarettes are safe, and that will drive people to use electronic cigarettes vice quiting entirely."
Because of course we must quit using nicotine in any form for safety sake, but it's ok to go out and drink a 6 pack every night.
Reminds me of an old irk of mine. I walk into a gas station and put a six pack on the counter and the clerk rings it right up, then I ask for a pack of smokes too and he instantly wants to see my ID.