AP EXCLUSIVE: At Walmart, using AI to watch the store

Inside one of Walmart's busiest Neighborhood Market grocery stores, high resolution cameras suspended from the ceiling point to a table of bananas. They can tell how ripe the bananas are from their color. When a banana starts to bruise, the cameras send an alert to a worker. Normally, that task would have relied on the subjective assessment of a human, who likely doesn't have time to inspect every piece of fruit. Welcome to Walmart's Intelligent Retail Lab -- the retail giant's biggest attempt to digitize the physical store.