Shagg

you can say 2+2 = 5 doesn't make it true though. I have yet to see a credible source that labels napalm as a chemical weapon. By your definition any binary chemical explosive would be a chemical weapon. Nitroglycerine is an explosive, but it exists as a liquid so its a chemical weapon. Tracer ammunition would also be a chemical weapon since it uses phosphorus as a tracing agent.

In the case of the bridge, it was probably the best choice of weapon for leaving the bridge intact. There really isn't a whole lot of options when it comes to anti-personnel weapons for air strikes. Cluster munitions are great, but they have longer term effects because of unexploded bomblets. Strafing with 20mm isn't very effective and poses more risk to the pilot than to the combatants that are being strafed. 500, 1000, and 2000 lb iron bombs are more likely to cause serious harm to the structure, which isn't the best thing do to when you are trying to preserve infrastructure. Guided munitions such as hellfires, mavericks and tows are designed for hard targets. Flechette artillery rounds are great, but of limited availability and you actually have to have artillery in place to use it. (and talk about not being pretty, instant hamburger)