The 5 Biggest Vice Industries in the World by Chris Matthews @FortuneMagazine March 24, 2016, 8:07 AM EDT E-mail Tweet Facebook Linkedin Share icons The vice economy never strays far from controversy. Whether it be battles over cannabis legalization, the spread of casinos, or daily fantasy sports websites, certain businesses have to contend with more than just satisfying their customers. Dealers in taboo products, like gun manufacturers, have even been the subject of recent presidential policy debates. Hillary Clinton and Bernie Sanders recently sparred over whether Congress should pass a law holding small arms manufacturers liable for crimes committed with their weapons. Those who pay close attention to the debate over gun control in America, however, might be surprised to learn that in dollar terms, gun dealers are fairly low caliber. Revenue is just around $16 billion annually, far less than the sales totals of many of the world’s largest vice industries. Here are the top five.