Final answer:
Krakauer begins to feel guilty about being a journalist on this expedition because he believes he should have intervened to prevent some of the tragedies.
Step-by-step explanation:
Krakauer begins to feel guilty about being a journalist on this expedition because he believes he should have intervened to prevent some of the tragedies that occurred. This is similar to Christiane Amanpour's perspective as a journalist, where she feels a responsibility to shed light on important events and not just be a bystander or someone with a megaphone. Krakauer's guilt stems from a sense of moral responsibility and the belief that he could have made a difference.