About the Images
The first image is a photomicrograph of a crystal of pseudoephedrine, which has been recrystalized and photographed under a microscope by Michael Davidson of Molecular Expressions. To learn more about how pseudoephedrine, a powerful cold and allergy medicine, can be misused to create crystal meth, refer to Section 1: Ephedra and Crystal Meth.
The second image is a spilled can of Zyclon B, a stabilized form of hydrogen cyanide that was used by the Nazis to kill millions of people in concentration camps such as Auschwitz during World War Two. To learn more about hydrogen cyanide, refer to Section 4: Chemical Warfare Agents.
