According to video on CNN, the government has determined that the chemical coating used inside of microwave popcorn bags is leaching into the product. I think microwave popcorn is the biggest rip. Mel and I make regular popcorn all the time in the microwave.
All you have to do is put about 1/3 cup of popcorn in a brown paper bag. We just fold over the top of the bag, but you can staple it also.