Safety isn't even my primary criticism of the Space Shuttle program. I am a huge supporter of space exploration and my biggest complaint today is that we have become so risk averse that a "no casualty" philosophy dominates all other considerations. My complaint is that when you take all Space Shuttle program costs into account (adjusted for inflation), amortized over the life of the Shuttle program and spread over each actual launch, that each launch ended up costing roughly $1.5 billion. For a system that was sold under the premise of reducing launch costs to $1,500 per kilogram, ending up at $60,000 per kilogram is an unmitigated failure. It's such an unbelievably huge miss, in fact, I can't even cry. I can only laugh.
The original projections were for 55 launches per year. Eventually it was realized the best case was 24 launches per year, which was then reduced to an expected 12 launches per year. The most ever launched in a year was 9. And that only happened once. The average came out to just over 4.
When someone says they can do something that's never been done before for a Z dollars, it might seem amazing and worthy of a good deal of pride and chest-thumping. When you find out it was really done for ZZZZZZ dollars you start to realize pretty much anyone could have done it at that ludicrous cost if they had the money to do so...and suddenly I'm not so proud anymore. Just embarassed.