 Biden was let off stage at the end of the debate by his wife. Other whistleblowers come forward alleging safety issues at Boeing. Richard Cueva is a mechanic at Strom, a contractor. He says he saw holes improperly drilled into bulkheads of 787 planes at a Kansas facility last year. More than a dozen whistleblowers have come forward with concerns about Boeing in recent years, and the company is under investigation.