This issue interests him because he seems obsessed with China being geographically "larger" than the US.

这个问题让他产生兴趣，是因为他似乎对中国地理上比美国更大感到耿耿于怀。

youdao

It seems to be Dorner's belief that he was fired because of this, and it seems to be the spark for his larger anger toward the department.

CNN: STORY HIGHLIGHTS

Dorner's larger crusade against the LAPD seems clearly centered on his personal termination, but he views it as an example of a corrupt culture.

CNN: SHARE THIS