Another reason for the market sell-off revealed during earnings conference calls: rising inflation By: CNBC.com News April 24, 2018 at 16:35 PM EDT CNBC's Bob Pisani discovered another reason for the Dow's 400-point plus drop on Tuesday. Read More >> Related Stocks: 3M Co Caterpillar Kimberly-Clark Procter & Gamble Whirlpool Corp