Whether napalm is a classified as a chemical weapon is a moot point - it contains chemicals in order to give it its desired attributes, which is enough for me to be comfortable with the description, and not me alone, it would appear. I suspect that the fact that it is not regarded by the powers that be as such has far more to do with the authority wielded by those who would use such weapons (on military and civilian targets alike) than on its constituant parts.
Some eye witness accounts of the effects of napalm and other weapons used in Viet Nam:

"As well as explosive bombs the United States Air Force dropped a considerable number of incendiary devices.
The most infamous of these was napalm, a mixture of petrol and a chemical thickener which produces a tough sticky gel that attaches itself to the skin. The igniting agent, white phosphorus, continues burning for a considerable amount of time. A reported three quarters of all napalm victims in Vietnam were burned through to the muscle and bone (fifth degree burns). The pain caused by the burning is so traumatic that it often causes death.

A New Jersey Housewife visiting Viet Nam in order to adopt 3 Vietnamese children:
"I had heard and read that napalm melts the flesh, and I thought that's nonsense, because I can put a roast in the oven and the fat will melt but the meat stays there. Well, I went and saw these children burned by napalm, and it's absolutely true. The chemical reaction of this napalm does melt the flesh, and the flesh runs right down their faces onto their chests and it sits there and grows there... These children can't turn their heads, they were so thick with flesh... And when gangrene sets in, they cut off their hands or fingers or their feet.

Martha Gelhorn in 1967:
"In the children's ward of the Qui Nhon province hospital I saw for the first time what Napalm does. A child of seven, the size of our four-year-olds, lay in the cot by the door. Napalm had burned his face and back and one hand. The burned skin looked like swollen red meat; the fingers on his hand were stretched out, burned rigid. A scrap of cheesecloth covered him, for weight is intolerable, but so too is air."

4 Viet Nam war vererans visiting Ho Chi Mhin City in 1982
"In Ho Chi Minh City we visited two hospitals which house the deformed children thought to be victims of Agent Orange. Since the dumping on Vietnam of some 11 million gallons of Agent Orange there has been a huge increase in the frequency of genetic malfunctions. Children have been born without eyes, with twisted, mangled limbs, even without brains. In the main hospital in Tay Ninh, a quarter of all births are miscarriages... Hydrocephalus, or water on the brain, is thought to be one of the many malformations attributable to Agent Orange. At the Tu Do Hospital, doctors need to perform some 100 operations a year on hydrocephalic babies. The operation required is a relatively simple one, frequently performed in the West, using a special silicone tube. But the Vietnamese doctors cannot carry out the operations because they have no silicone tubes... The tubes are manufactured in the US and America has imposed a complete embargo on exports to Vietnam."

"so he hijacks the thread, changing the subject to agent orange"
A bit rich coming from someone who helped hijack a thread and turn it into and interminable and extremely vicious racist attack on British Pakistanis.
However, the way the US conducts is wars is extremely relevant to this subject, and to try to separate the assassination of bin Laden from the war going on in the Middle East is utter nonsense.
The US attitude to civilian casualties came to the fore in the 1960s and has never altered, according to eye witnesses, some of them US soldiers, they were still using chemical weapons on civilians half a century later in Fallujah. And they have even sanitised and dehumanised the English language to make their behavious acceptable - what was killing and maiming civilians is now "collateral damage".
America and Britain are allies; how the US behaves at war rubs off on every one of its allies. Thanks to Tony Blair, and at the request of George Bush, Britain was dragged into an illegal invasion on totally false pretences - what the the US did reflects on all those supporting it and how the people of the Middle East regard us it vital to the outcome of the current unrest if we are to have any say in its outcome.
Add this to the fact that, from his admission, Keith would happily open the door to a power which not only uses torture and illegal detention against its own citizens, but also behaves as described above in warfare.
I have no doubt that he is not alone and there are other quislings who would be prepared to do exactly the same.
Jim Carroll