Tens of thousands of Boeing’s unionized workers are on strike after they rejected a new contract last week. WSJ’s Sharon Terlep reports on the rising tensions that have led to this breaking point and what it could mean for the only American manufacturer of both commercial and military aircraft. Further Reading:  - Boeing Freezes Hiring, Delays Pay Raises as Strike Worsens Finances  - Boeing Union Goes on Strike, Halting 737 Production  Further Listening:  - Boeing's Long Flight Delay – in Space  - Boeing Agrees to Felony Plea. Now Its Future Is Up in the Air.  - The Failures Inside Boeing's 737 Factory  Learn more about your ad choices. Visit megaphone.fm/adchoices