1. They also warned that all of the chemical weapons could not be found and destroyed.

2. President Obama had said the use of chemical weapons would be considered a red line.

3. As a result, those who stand up to the chemical industry in China rarely prevail.

4. It says it suspects there are reasonable grounds to believe chemical weapons have been deployed.

5. He added he had concluded that the Syrian government carried out the chemical weapons attack.

6. Obama called off strikes when Syria agreed to turn over chemical weapons.

7. There is credible evidence of many more chemical weapons attacks by the Assad regime.

8. Scientists took advantage of those chemical differences in their analysis of the manuscript.

9. Council members also pledged to take further measures if chemical weapons were used.

10. Some of the facilities stored the chemical in solid form, which is among the most dangerous.

11. Other companies have committed to removing the chemical without a firm timeline.

12. Fire department officials confirmed the presence of the chemical in that region.

13. The components would destroy any chemical agents they come in contact with.

14. There are also warnings that the group could use human shields or chemical weapons.

15. Each side in the conflict has accused the other of using chemical weapons, and both deny it.