April 5 on The Story: Are tacos sandwiches? Are pastas salads? There's another food fight in town: Are potatoes vegetables or grains? U.S. dietary guidelines are the backbone of the country's nutrition policy, influencing everything from school lunches to WIC policies to what kind of food gets federal research funding. What may happen to Northwest farmers and consumers if potatoes are reclassified as grains instead of vegetables? Watch more The Story videos: http://bit.ly/watchTheStory Follow The Story on Twitter: https://twitter.com/TheStoryKGW Follow The Story on Instagram: https://instagram.com/thestorykgw