The U.S. Homeland Security secretary announced new sanctions—the freezing of assets and a U.S. travel ban—on Cuban government officials during his visit to Miami on Thursday.

And some South Florida litigators—like A. Dax Bello, the Cuban American Bar Association president and partner at Stewart Tilghman Fox Bianchi & Cain in Miami—said they fear recent sanctions have “no teeth,” and that the U.S. needs to do more.