Federal agents have served search warrants in Minnesota in an ongoing fraud investigation of publicly funded social programs for children. No details about possible crimes were disclosed, though armed agents were seen at childcare centers in the Minneapolis area on Tuesday. Gov. Tim Walz welcomed the action. Minnesota was the site of an immigration crackdown that led to the deaths of two people this year. Before that crackdown, the government brought charges against dozens of people, many of them Somali Americans, who were charged with fleecing a federal program that was meant to provide food to kids.