HALIFAX — A Nova Scotia MLA is raising freedom-of-speech concerns after a Toronto-based retail chain cancelled a local book signing amid controversy over the book’s portrayal of an area pulp mill. Pictou West MLA Karla MacFarlane says the decision to cancel the Dec. 2 book signing at the Coles bookstore in New Glasgow, N.S., was the “wrong move.” “I feel like freedom of speech has been infringed upon here. If there was a book written pro-mill, I would want that to be sold too,” she said Wednesday. Joan Baxter’s book, “The Mill: Fifty Years of Pulp and Protest,” explores the impact of the Northern Pulp mill near Pictou in northern Nova Scotia.