 La Guardia then went after the gangsters with a vengeance, stating in a radio address to the people of New York in his high-pitched, squeaky voice, "Let's drive the bums out of town".In 1934 he went on a search-and-destroy mission looking for mob boss Frank Costello's slot machines, which La Guardia executed with gusto, rounding up thousands of the "one armed bandits", swinging a sledgehammer and dumping them off a barge into the water for the newspapers and media.In 1935 La Guardia appeared at the Bronx Terminal Market to institute a citywide ban on the sale, display, and possession of artichokes, whose prices were inflated by mobs.