Burn Notice, Season 1

Michael:
[V.O.] Military firebombs are typically white phosphorus or chlorine trifluoride. These are remarkably effective, but they are also unstable, lethally toxic, and hard to find at the grocery store. The main ingredient in a homemade firebomb, on the other hand, is Styrofoam. A military demolition expert can put something together in a few hours. An IRA trained guerrilla can do it in twenty minutes... give or take.