(WASHINGTON) — Boeing CEO David Calhoun apologized to the families of victims of previous plane crashes involving the company’s planes, including the 737 Max, before being grilled by senators Tuesday during a hearing on Capitol Hill. “We are focused on safety.”Blumenthal thanked the families for joining the hearing. In his opening statement, Blumenthal hearing pressed Calhoun on whether the executive has made progress in turning the company around. A Boeing spokesperson said the company had received on Monday evening the documents supplied to Blumenthal by the whistleblower. The latest whistleblower stepped forward as Boeing CEO David Calhoun prepared to sit for a Senate hearing on his company’s “broken safety culture” on Tuesday afternoon.