The U.S. Justice Department has charged 28 members and leaders of Mexico's Sinaloa cartel, including three sons of Joaquin "El Chapo" Guzman, with fentanyl trafficking, weapons and money laundering. The Chapitos are accused of fentanyl trafficking and money laundering, and more charges are expected to be filed in the future as part of the Justice Department's larger effort to combat the opioid crisis in the United States.