Movie-plot security threats bonanza

Security guru Bruce Schneier's April fools challenge to come up with "movie plot security threats" continues to bear fruit. Schneier's readers keep on posting new, implausible threats to national security that the Department of Homeland Security can include in its nothing-is-too-implausible countermeasures:
Several teams could base themselves in western US states like Arizona, New Mexico, Montana, etc during summer, and wait for dryest and hottest part where forests are at their period of least amount of moisture in the fuels (wood, shrubs, grasses).

All that would be required for that is just easily made incendiary devices, tossed out a window of a moving car. If a series of teams did that simultaneously, and each one did multiple fires in one day, many large fires could be created in each state, quickly overwhelming wildland firefighting crews.

And in order to ground aerial firefighting planes and helos, either unguided rockets, or even a real SA-7/14 type missile to actually hit one of them. USFS will immediately order all firefighting aircraft to not fly.

Firefighting crews could be attacked, by means such as shooting, bombing their vehicles or firecamps.

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