This might be old news to some but a reader recently forwarded me links to 3 stories, Eric Knight of Evacuator System Responds to Greensboro Air Quality Issue by Braden Keith, Breaking: Dressel taken from Jr Nats in an ambulance with breathing trouble by Jared Anderson and Greensboro Aquatic Center Undergoing HVAC Overhaul Ahead of Winter Juniors by Braden Keith, which indicate 1. The aquatic center had HVAC problems prior to the 2013 Winter Junior National Championships and still had problems during this most recent event.
I'll not add any commentary except to say isn't the aquatic center run by the same Matt Brown who has been picked to run the Steven Tanger Center for the Performing Arts?