The Federal Trade Commission and eight states said Monday they are suing to block supermarket chain Kroger’s $24.6 billion deal to buy smaller rival Albertsons, saying it would boost grocery prices for millions of Americans.The deal, which would create a grocery empire with more than 4,000 stores, has drawn tough scrutiny from lawmakers and consumer groups worried about higher grocery prices, job losses, store closures and diminishing choice for consumers.The FTC charged the deal will eliminate “fierce comp ...