Walmart is testing letting shoppers buy bitcoin at 200 Coinstar kiosks in its US stores through a Coinme partnership (Ian Allison/CoinDesk)

Ian Allison / CoinDesk:

Walmart is testing letting shoppers buy bitcoin at 200 Coinstar kiosks in its US stores through a Coinme partnership  —  Walmart, the world’s largest company by revenue, is letting customers buy bitcoin at dozens of its U.S. stores.  —  Shoppers can purchase the cryptocurrency …