.....we shouldn't expect that lives should be lost as part of the legal tolerance of NASA.
Both shuttle losses were due to ignorance and neglect not unforseeable occurences.
This is going to sound mean spirited, but I disagree sir. Given what we asking of NASA, yes we should expect to have lost people and continue to lose them (hopefully in rare numbers). and for every astronaut killed, we also lose on average four or five ground personel as well.
Yes we should of re-designed the booster after the first burn thru.
Yes there should of been a second shuttle prepped.