Complex sentence: Since the 1980s, the Racketeer Influenced and Corrupt Organizations Act (RICO Act) has become a highly effective law in convicting mobsters and shrinking the American Mafia; like all families in the United States, the L.A. Mafia only holds a fraction of its former power.
Split into simpler sentences: Since the 1980s, the Racketeer Influenced and Corrupt Organizations Act (RICO Act) became a highly effective law in convicting mobsters and shrinking the American Mafia. Like all families in the United States, the L.A. Mafia only holds a fraction of its former power.