The lawsuit, certified on Aug. 31, has more than 2 million people negatively affected by alleged racial profiling in Chicago Police Department stop-and-frisk incidents.

Stop and frisk is both a symbol of proactive policing and a flashpoint for civil liberties advocates. Central to the debate is the threshold of “reasonable suspicion.” Reasonable suspicion was ...

Bernadette Siaton, MD, a rheumatologist who treats gout at the University of Maryland Medical Center and an assistant professor of medicine at the University of Maryland School of Medicine; Victoria ...