The 1973 GAO report[1] mentions the same issues. It does not reach a final judgement, but recommends Congress should examine the planned missions carefully.
The recommendations and conclusions sections is a relatively short and easy read. I get the impression (though it could be my bias) that it is written skeptically.
The recommendations and conclusions sections is a relatively short and easy read. I get the impression (though it could be my bias) that it is written skeptically.
[1] https://www.gao.gov/assets/210/203748.pdf