Seriously, I found this article

In just two or three minutes of preheating, your (Teflon) pan will give off fumes that can make you sick. Each time you use medium to high heat on an empty pan, the surface on Teflon-coated and other nonstick cookware breaks apart and emits a toxic chemical called perfluorooctanoic acid, or PFOA, according to the Environmental Working Group, a Washington, D.C., organization that investigates issues of environmental health and safety.
Avian veterinarians have known for decades that Teflon off-gases are a leading cause of death among birds, and estimated that hundreds, perhaps thousands, of birds are killed each year.
Like the canaries that were used in the coal mines, birds act as an early warning system for humans. The EPA recommends that bird owners avoid cookware and heated appliances with nonstick coatings completely. Perhaps everyone should be heeding this warning.
In January 2006, DuPont agreed to an EPA plan to phase out PFOA by the year 2015.
I'm not going to throw out my teflon quite yet, but I am going to take the following precautions (at least until the next environmental hazard comes along).
If a recipe calls for preheating an empty pan, either put the oil in first anyway, use a stainless steel or cast iron pan, or get someone else to cook it for you and stay far away from the kitchen. (Ha! Just kidding about that last one.) Also good advice from the article - never preheat teflon on high, and make sure your kitchen is well ventilated. Also, keep pet birds out of the kitchen.
Great, one more thing to worry about.
wasn't that the same crap from when we discovered we couldn't eat microwave popcorn anymore. I just got an airpopper and bought some new steel pans.