Two U.S. senators have asked the Department of Justice to take tougher action against Boeing executives by holding them criminally accountable for safety issues that have impacted its airplanes. In a letter dated Wednesday and sent to Attorney General Merrick Garland, Democratic Sens. Elizabeth Warren of Massachusetts and Richard Blumenthal of Connecticut said the department’s past efforts to effect change at Boeing have failed “because of its continued refusal to criminally prosecute responsible individuals.” (asterisk)For too long, corporate executives have routinely escaped prosecution for criminal misconduct.