Inspired by Roberta's post I looked up something I had seen a while back--How To Make a Cremora Fireball. Here are some pictures of the results:

40-50 Foot Tall Cremora Fireball
(Photo and fireball by Noel Emge)

70 Foot Mushroom Cloud by Bluegrass Pyrotechnic Guild

And in case you hadn't connected all the dots the TSA does not (and cannot) sniff your luggage for coffee creamer or powered milk. Hence a component of my contempt for the entire concept of TSA.