Vonnegut promise Mary O'Hare

  1. Why is Mary O'Hare upset, what does Vonnegut promise her, and does he keep his promise? 2. What reason does Vonnegut give in the text for there being nothing to say about a massacre, and what does he say is the only thing that can be said about it? 3. What are the two possible interpretations of Billy's time travel? Explain which you side with, and why, referencing specific examples from the text. 4. Who (briefly) is Paul Lazzaro?