1 is required to establish a personal credit rating
2, 3, and 4 impact the calculated rating itself
Frist logical connection between the two is that Manzanar Internment and the Japanese living in West Coast of USA are both Japanese people forced to live in isolation because American government thought that Japanese had invaded Pearl Harbour and they must be looked upon with suspicion.
Secondly,in both the cases ,innocent Japanese may have suffered isolation because"Fear was Stronger than Justice".American government was not ready to listen to Japanese people living in USA whether they were innocent or not.They could be potential spy ,ready and willing to assist Japanese in invasion.
What would happen to writing if paragraphs didn't exist is that when the reader reads the writing, he/she might skip a sentence or even get confused. And then you might not understand it yourself. It can affect the reader by not understanding what is going on in the writing if it's a story.
Umm, it could mean she wants to destroy any remnants if her childhood.