The DoJ opened a criminal investigation into the Boeing 737 blowout, The Wall Street Journal reported. Boeing has come under increased scrutiny over the safety of its 737 Max fleet. Alaska Airlines said this was "normal" and it was not the target of the investigation. Insider Today NEW LOOK Sign up to get the inside scoop on today’s biggest stories in markets, tech, and business — delivered daily. Read preview Bull Thanks for signing up! Access your favorite topics in a personalized feed while you're on the ...