Arizona’s Democratic Sens. Mark Kelly and Ruben Gallego, are supporting a bill which would require undocumented immigrants charged with crimes to be taken into custody. Mexico is working on breaking up migrant caravans setting out from the south of the country toward the U.S. border in the days before President-elect Donald Trump takes office. A new study found that adding public school employees to the state’s employee health insurance plan would decrease health care costs for teachers and other school workers. Plus the latest science, business, metro Phoenix and Fronteras Desk news.