It's now 4 1/2 years since Starliner's nearly-disastrous first (uncrewed) test flight, 4 years since SpaceX's successful <i>crewed</i> test flight, and 2 years since Starliner's second (uncrewed) test flight.<p>At what point does NASA need to pull the plug on Starliner, and start looking for second-source Earth-LEO passenger service from companies which can actually do the d*mned job?