Why the use of chemical weapons is so different from bombs and bullets

The U.S. says Syria likely used chemical weapons on their own people and are deciding whether to use military force.

Whether it’s bombs or bullets, people die in war.  So why is the use of chemical weapons so different?

Dr. Aaron Monte, a chemistry professor from UW-La Crosse talks about the origins of chemical weapons, what they do to a human body, and why they are banned by many nations across the world.