Ethics Case: Flowers vs. Mississippi

Sources: 

-  https://www.washingtonpost.com/politics/courts_law/in-supreme-court-case-about-jury-discrimination-a-surprise-from-thomas/2019/03/20/d9c67b80-4b23-11e9-93d0-64dbcf38ba41_story.html?noredirect=on&utm_term=.9e0be180d62f 

-   https://www.apmreports.org/story/2019/03/18/curtis-flowers-black-prospective-jurors-questions 

-   https://www.clarionledger.com/story/news/2019/03/20/curtis-flowers-six-trials-supreme-court-hearing/3222945002/ 

Please answer these questions in one paragraph :

What is a Batson violation?

Is the use of jailhouse informants ethical? Why or why not?