Expert doubts one rocket could carry enough chlorine to kill dozens . CNN affiliate reports results of blood and soil testing sent to United Nations . - The U.N. says it has received samples from the site where a suspected chemical attack took place in Syria. Analysts believe the Syrian government may have one of the largest stockpiles of chemical weapons in the world . Rebels have said they have no access to chemical weapons .
Expert doubts one rocket could carry enough chlorine to kill dozens . CNN affiliate reports results of blood and soil testing sent to United Nations . - The U.N. says it has received samples from the site where a suspected chemical attack took place in Syria. Rebels have said they have no access to chemical weapons .