Canada says NAFTA agreement possible by Friday, but hard work ahead

WASHINGTON (Reuters) - Canada said an agreement to salvage the trilateral North American Free Trade Agreement (NAFTA) is possible by a Friday deadline, but it will be hard work to resolve specific issues as talks with the United States entered a second day.After more than a year of talks, Mexico and the United States announced a bilateral deal on Monday, clearing the way for Canada to rejoin talks to update 24-year-old NAFTA which accounts for over $1 trillion in annual trade between the three..