Roger Boisjoly provided a Presidential commission with documents supporting his hypothesis about how the cold temperature had causes the failure of an O-ring on the Space Shuttle Challenger. For this action, Boisjoly was labeled a .

whistleblower

Explanation:

Whistleblower refers to Someone from within an organization who informs about the shady/unethical activities that the organization was doing to people outside of the organization. (Roger revealed that some part of the equipment made by his organization was malfunctioning)

In united states, whistle blower is legally required to be given a certain level of protection depending on how much danger the whistlers put themselves in by revealing the information.

answer; i believe the best and correct answer is stronger bonds between the nations of africa;

no one should discriminated against because he or she is not from a minority group