During prohibition, Jewish gangsters became major operatives in the American underworld and played prominent roles in the distribution of illegal alcohol and the spread of organized crime throughout the United States. At the time, Jewish gangs operated primarily in America's largest cities, including Cleveland, Detroit, Minneapolis, Newark, New York City, and Philadelphia. Numerous bootlegging gangs such as the Bug and Meyer Mob headed by Meyer Lansky and Bugsy Siegel and Abe Bernstein's Purple Gang[21][page needed] would see the rise of Jewish-American organized crime to its height.