FILE PHOTO: Shareholders check out a train display at the BNSF booth as they shop for discounted products at the annual Berkshire Hathaway shareholder meeting in Omaha, Nebraska, U.S., May 4, 2019. REUTERS/Scott Morgan/File Photo
FILE PHOTO: Shareholders check out a train display at the BNSF booth as they shop for discounted products at the annual Berkshire Hathaway shareholder meeting in Omaha, Nebraska, U.S., May 4, 2019. REUTERS/Scott Morgan/File Photo