Just days before airing their investigation into the disappearance of Jennifer Hillier-Penney, The Fifth Estate was hit with an unusual publication ban that limited what they could and couldn’t say. Diana asks Mark Kelley how they dealt with it and if the ban was really in the public interest. Watch ‘The Investigators with Diana Swain’ Thursdays at 7:00 p.m. on CBC Television; Saturdays at 9:30 p.m. ET and Sundays at 5:30 p.m. ET on CBC News Network.