A man has been charged with terrorism after allegedly setting a 26-year-old woman on fire during an argument aboard a Chicago Blue Line train. The attack, described as brutal and vicious, occurred in the busy Loop area, leaving the victim in critical condition. Witnesses reported that the suspect doused the woman in a flammable liquid before igniting it and fleeing the scene. A person of interest is in custody, and federal prosecutors have filed a terrorism charge against the suspect, who has numerous prior arrests. Authorities are investigating potential links between this attack and another arson incident at City Hall.