Scores of students, activists and others marched through Portland on Friday carrying the reproduced artwork of the imprisoned radical Thomas Manning and scolding the University of Southern Maine for canceling an exhibit of his work. Staff photo by Gregory Rec David Bidler, Rebekah Yonan and Ryan Edwards hold works of art by Thomas W. Manning at the University of Southern Maine in Portland on Friday. About 100 people walked from USM to Congress Square with Manning's art to protest its removal from a USM gallery show last week. Manning is in prison for killing a New Jersey state trooper. Some...