Programs which by their very nature are unethical, immoral and discriminatory.
There are supposed to be regular testing of the concrete batches that would catch the issue before the bad concrete was in place. There is way more to this issue.
I dunno about that. In the case of federal government contracting most of the work would be tied up by a few large companies if there weren't set asides that forced contracting officers to look elsewhere. Its sheer laziness most of the time. That and favors given and accepted.