Actually, the FDA is quite wrong in its jurisdiction. Personal vaporizers are neither food nor drug--they are tools used to prepare a food and/or a drug for delivery. The FDA can and should regulate the production and distribution of nicotine, but e-cigarettes work just fine without nicotine--they only need elements that are previously FDA approved: Propylene Glycol, water, and FDA approved natural and artificial flavoring...all ingredients that are used in fog machines that millions of people inhale every day at concerts, clubs and theaters.
If the FDA discovered that there is a health hazard inherent to inhaled nicotine and wanted to ban nicotine e-liquids, we can still get the majority of benefit of e-cigarettes without it. We could then wean ourselves from the nicotine addiction by whatever method the FDA approves, but if e-cigs aren't a good delivery method I am quite doubtful that any of the approved methods are any better. If nicotine bound to a resin (Nicotine Polacrilex--found in the patch and gum) is safe, I have a hard time believing that nicotine dissolved in a liquid is any less safe.
I was able to explain my e-cig to my 8 year old daughter by simply telling her that it is a "pretend" cigarette. She's grown up in this world that vilifies smoking, and I raised her to call my cigarettes "yuckies" from the time she could first talk..and she seems to totally understand why "pretend" is better for her daddy. If an 8 year old can understand that, surely our President and the FDA can figure it out!
