IOWA CITY — A Johnson County supervisor Tuesday — in discussing University of Iowa teacher demands the campus pivot immediately to virtual instruction for fall given pandemic conditions — voiced fear of the looming population surge and what it could mean for her “red zone” community. “It scares the hell out of me to see 30,000-plus students coming back,” Supervisor Royceann Porter said about UI plans for a hybrid fall semester that prioritizes in-person instruction and reopens the campus, including residence halls.