And here we go again. Another Shuttle, another SLS, another JWST.

Except this one has a fixed-by-physics deadline. Just maybe this time failure actually will be an option and the massive budgetary black hole will get plugged before it devours too much other useful science.

Edit: crap, it may already be too late. From the article:

Moreover, the reviewers said canceling Mars Sample Return would not free up billions of dollars for other planetary science missions.