Killer bees.
We are running out of oil (remember those gas lines?)
We now have too much oil, and are burning up the planet.
Fluorescent bulbs have mercury, which will kill you.
You should use fluorescent bulbs, curly ones, to save the planet
Mexican apples have Alar on them, which will kill you in 9 minutes.
The guy down the street is putting rat poison and razor blades in his Halloween Candy
New Ice Age - HERE IT COMES!
Black Mold. If you even look at it, you'll die in agony, this afternoon.
You drink wine? Those sulfites are a death sentence.
H1N1, MERS, Bird Flu
Antibiotic resistance
The "repressed memories" of kids in DayCare, proving that every third day care center was staffed by hard-core pedophiles

I saved a couple, so that you can play. Full Disclosure: I've been exposed and I might even have it. Maybe I'll die, even. Even so: You don't destroy an economy over this. Just more fear-mongering. Same stuff, different day.