Chertoff should take a deep breath The Montreal Gazette: Editorial Published: Friday, July 13, 2007 Perhaps Michael Chertoff should take an antacid. Certainly he should be careful what he says before he causes Canadians to need a Tylenol. The U.S. Homeland Security chief has been popping off about his suspicions, hunches and worries, but if he has facts to back up any of this, he's keeping those to himself. Chertoff told the Chicago Tribune this week that he has a "gut feeling" that the U.S. faces an increased risk of terror attack this summer. The next day, he said...