Weapons of Mass Destruction: Chem Bio Traditionally, Weapons of Mass Destruction (WMD) were Chemical, Biological, Radiologic and Nuclear (CBRN). The people of the world don’t want them used on us—they are cheap ways to kill and maim lots of people at once. And so international treaties were created to try to prevent their development (sometimes) and use. First was the Geneva Protocol of 1925, banning the use of biological and chemical weapons in war. The US and many nations signed it, but it took 50 years for the US to ratify it, so we believed we were not bound by...