June Callwood was one of the great Canadians of the twentieth century. She passed away April 14th, 2007. She was a journalist by trade, and a wonderful donor of her time, having co-founded over 50 organizations dedicated to helping those in need. In 2002, she gave a lecture on journalism and ethics, and I very much recommend that you give it a listen.
It applies not just to journalists, but anyone who reads papers, and writes their own ideas to share to people. You can listen to it here: