The victim dies of suffocation when the diaphragm fails to expand and contract. Unlike any other biological or chemical weapons, VX can kill simply by touching the skin. The VX gas Iraq is producing is 10 times more toxic than the sarin gas that killed 12 and injured 5,000 people on a Tokyo subway in 1995. Symptoms of VX Flu-like symptoms affecting respiration and vision. Lose of muscle control.
Death occurs when major organs fail.
With the low cost of creating a biological weapon, many worry about it being used by terrorists. In 1995, an Ohio militiaman was arrested after receiving a plague virus from the American Type Culture Collection. In Japan, the Aum Shinrikyo, the cult responsible for the Tokyo subway station poison gas, built a lab for developing biological weapons and almost obtained the Ebola virus successfully. Such labs are difficult to find and conclusively identify, as most could have medical uses as well. That is one of the reasons that the UN inspectors are having so much trouble in Iraq.