2. Mid shot of Colonel Joe Pecorano, Chemical Corps, US Army
3. SOUNDBITE (English) Colonel Joe Pecorano, Chemical Corps, US Army:
"Earlier today the men and women of the Pine Bluff chemical demilitarisation team made history by safely destroying the first chemical stockpile mission stored at the Pine Bluff arsenal."
4. Various shots of the people at conference
5. Various shots of people working with chemical weapons
6. SOUNDBITE (English) Randy Long, PBCDF (Pine Bluff Chemical Agent Disposal Facility):
"Instrument that reads agent levels - it didn't read what we were expecting it to read. We had one that was reading ok and one that wasn't and we just wanted to investigate why that one wasn't before we continued on."
7. Various shots of people working with chemical weapons
The Pine Bluff Arsenal in Arkansas, US, began burning the first of its 3,850 tons of chemical weapons on Tuesday, by incinerating two M-55 rockets laced with sarin nerve gas.
Being extra careful and dealing with two minor problems added some eight hours to the process, officials said.
Another 28 rockets are scheduled to be destroyed on Wednesday.
A further 3,000 tons or so of chemical agents, such as mustard gas and land mines, were to be destroyed in a process expected to take five years.
Chemical weapons have also been incinerated at other military depots.
The rockets have been stored at the Pine Bluff Arsenal, about 40 miles south (65 kilometres) of Little Rock, since the early 1960s.
The Pine Bluff Arsenal houses 12 percent of the nation's chemical weapons stockpile and is the fifth site to begin incineration under an international treaty that mandates countries destroy their chemical weapons stockpiles by 2012.