An April 24 article on the Syncrude Ltd. trial said that crews had deployed eight scare cannons around the Aurora tailings pond by April 28, 2008. This information was based on the witness statement of Gordon Grandjambe. Information unavailable to the Gazette at the time shows that Grandjambe was wrong — crews had not deployed any cannons on or around the pond by April 28, 2008. The Gazette regrets the confusion.