The U.S. has just issued a denial that they used napalm in Fallujah. They also claimed that the phosphorous used in Fallujah was only used for illumination. The State Dept. claims it has done nothing illegal.

That may be true but the use of Mark-77 firebombs, which have a similar effect to napalm, were used against enemy positions in 2003 and there are many claims of civilians being burned by phosphorous in Fallujah.

Just because a chemical isn't banned, doesn't make it right to use it. Its still chemical warfare. I would also question why so many civilians in Fallujah suffered phosphorous burns if it was only used for 'illumination'. Seems like a fine line to me.