Further, prohibition has done what it did in the case of alcohol in the 1930s. It has created a dangerous black market with violent and bloody turf wars that kill many people in our country and elsewhere. The original Prohibition brought us the St. Valentine's Day Massacre. Modern prohibition has brought us gun battles in the streets between drug cartels. Murders associated with the sale of alcohol ended with Prohibition. The same will be true of marijuana, although I realize cartels often traffic in other drugs as well.