CHICAGO — Standing on a street corner outside Hamline Elementary Monday afternoon, Gloria Marquez noticed the sidewalk had an unusually small number of parents for dismissal. Her 13-year-old and 9-year-old attend and are U.

Fearing federal agents asking to search a Chicago elementary school Friday morning were from Immigration and Customs Enforcement, school officials denied them entry. But it turned out they were US Secret Service agents pursuing an investigation.