What the end of NAFTA would mean for farmers and ranchers

President Trump's efforts to change the terms of NAFTA have divided farmers and ranchers, who depend, in different ways, on global trade. Special correspondent Grant Gerlock of NET traveled...

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JUDY WOODRUFF: But, first, we turn to trade.President Trump's tariffs on steel and aluminum angered allies around the globe.Here at home, his efforts to change the terms of the North American Free Trade Agreement,or NAFTA, have divided farmers and ranchers.From PBS station NET in Nebraska, Grant Gerlock looks at how it might affect their incomeand livelihoods.GRANT GERLOCK: Alan Tiemann farms corn and soybeans in Eastern Nebraska.But like many farmers, when it comes to his business, he keeps a global perspective.ALAN TIEMANN, Farmer: Ninety-five percent of the world's population lives outside theU.S.So, it's a huge factor, in that we're not just producing for ourselves.We are producing for the world.GRANT GERLOCK: Exports are a necessity,...