There's a children's Tylenol shortage and some parents are crossing the U.S. border to stock up on the medication for their sick kids. Health Canada says there's more Tylenol on the way, but will it be enough? Dr. Joel Lexchin, a professor emeritus of health policy and management at York University and an emergency physician at Toronto’s University Health Network, is here to discuss how we got to this shortage and if the government's announcement is going to help.