GRAPHIC-Stocks to watch as NAFTA's future remains in doubt

By Rodrigo Campos and Lewis Krauskopf NEW YORK, Oct 18 (Reuters) - The future of the North American Free Trade Agreement (NAFTA), a nearly 24-year-old trade pact between Canada, the United States and Mexico, hangs in doubt after the latest round of talks in Washington ended in acrimony on Tuesday, casting uncertainty over a range of stocks. NAFTA, long opposed by U.S. President Donald Trump, eliminates most tariffs on trade between the three countries. Although trade more than quadru