HOUSTON, TEXAS - SEPTEMBER 09: A customer loads his truck after shopping at a Kroger grocery store ... [+] on September 09, 2022 in Houston, Texas. Kroger stock increased six percent as the company surpassed profit and sales expectations. (Photo by Brandon Bell/Getty Images)Getty Images(Disclosure: I am an investor in Albertson's.) The FTC announced that will sue to block the merger of Kroger KR and Albertson's, the two largest U.S. companies that only sell groceries.On the face of it, it seems obvious that ...