( Al Hartmann | Tribune file photo) In this 2016 file photo, playwright Mary Dickson, whose 2007 play “Exposed” chronicled the effects the above ground nuclear tests had on the downwind population in Utah speaks at launch event for “Downwinders of Utah Archive” at the Marriott Library at the University of Utah. Dickson will be speaking at a screening Monday, Jan. 27, of a documentary on the downwinders.