As my friend anarcho-libertarian "Wild Bill" says ... "Hey if it [the shuttle] was military, I'd be 100% for it." He's right, such risks might be acceptable to acheive a military goal, in in the framework of a (theoretically) higher military accountability. Practically the shuttle is not only lousy for science, not only "jams the channel" for space-enterprise both public and private, but would be a ultra-lousy military platform too.
NASA has NO institutional common sense to even continue with it. You'll notice the military has run away from it, some years back. Thankfully!
This was the first "science mission" in over two years.