Question:
"Why wouldn't the Apaches just kill him and his men and grab what they have?" Drew pointed out what seemed to him the obvious flaw in the system.

Does it follow that "Drew had been looking for flaws the entire time."?
Answer:
it is not possible to tell

Question:
it was it's so easy to entertain them

Does it follow that "They are easily entertained. "?
Answer:
yes

Question:
The notoriously jingoistic Sun , which has never before shown even a hint of friendship toward Japan, published an editorial promising a new era of better relations between our two countries.

Does it follow that "The Sun promised a better relationship with Japan in an editorial they published. "?
Answer:
yes

Question:
We're on the right track, I think? Sir James looked round.

Does it follow that "We're on the correct path, I assume? Sir James scanned the area."?
Answer:
yes