second lowest grade of classified government documents. Environment Canada spokesperson Julie Hahn said they apply to letters of complaint, criticism or injury, research or scientific notes and findings that don`t have any conclusion, and Treasury Board letters, agendas and minutes that don`t deal with subjects of national interest. Environment Minister John Baird has asked government officials how such documents that are supposed to be stored in "approved security cabinets" wound up on the street. "I'm told two things: that it's neither classified nor secret and that it's stuff that could be available under access to information," Baird said. Environment Canada spokeswoman Sujata Raisinghani told CBC News the department will look into the incident. "We take document security seriously," she said, but refused to give any more details about