Boeing's CEO has never spoken to any of the whistleblowers accusing the company of safety issues.  The aerospace manufacturer is being questioned in the US Senate over incidents and allegations the company has had this year.  Ex-employees allege the company has been cutting corners, hiding evidence from regulators, and skipping safety inspections.  Committee member Ron Johnson began the questioning of CEO Dave Calhoun by asking if he'd spoken to any of the whistleblowers.  When Calhoun replied he had not, Johnson suggested it might be a good idea.  US Correspondent Richard Arnold told Mike Hosking that a short time ago Calhoun made an assertation that they’re committed to making sure every employee feels empowered to speak up if they have a problem.  He said that there is a striking difference of opinion, as the Head of the Senate Panel says the recent whistleblower had pressure exerted on him to stay silent.  LISTEN ABOVE  See omnystudio.com/listener for privacy information.