Chapter 22- "Our Doubts Are Traitors" part 3

[Heyyouinthebushes]

I was wondering about the title of the chapter, "Our Doubts are Traitors". Do you think aside from the rat and Pippin situation it could also refer to how Burt is doubting himself, causing his hands to shake? Or Sauls doubt that anyone is concerned about Lizzie caused him to be a traitor (using the term loosely) in a way that he would break his promise to wait at LAX?

"Our doubts are traitors" is a line from Shakespeare's Measure for Measure, a play in which deception is used to free a man unfairly imprisoned (though his imprisonment is justified by following the strict letter of the law). This could hint at a couple things: (1) Michael and Angel using deception to bring about justice. (2) If Pippin's killer is also the rat, but killed Pippin because they have "turned good" and wanted to protect the Tower, it could hint at the idea of justly punishing him or her (vs punishing by letter of the law). Lizzy was punished following the strict letter of the law, and the punishment has proven unjust. What is a 'just' punishment for the killer/rat if their killing Pippin was to make up for being the rat?

Just an idea.