MARSHALL, Minn. — Two people wearing swastika masks entered a Walmart and found themselves surrounded by offended shoppers. Police responded to the disturbance, and the couple left without further incident. The store issued a trespass alert not to come back for a year. Police said the pair with the Nazi iconography, a large black-on-white swastika on a brilliant red bandana, were a 64-year-old woman and a 59-year-old man. Shoppers recorded the episode. Their videos went viral.