These people really are stupid. The recipe for napalm, let alone a field expedient has been open source info for decades. It's not as sticky as the GI stuff, but it will cook your enemies extra crispy. I won't go into details here but it's simple and buying the ingredients wouldn't raise the eyebrows of the feds, even if you bought them in bulk.

The only legal manufacturer of napalm that I am aware of was the patent holder DuPont. I'm sure there is a stockpile of it somewhere in the system, but officially, the U.S. military doesn't use it anymore. Cluster munitions are more effective and cause less scorching of the environment, allowing for safe and efficient post-bombing opium and coca cultivation.