1. Pages 20-22 list five possible objections to Summers' argument. Which of these objections seems most serious to you? Does Summers have a good answer?

2. Which of the five objections seems to you weakest? How would you respond on Summers' behalf.

3. What is the point of the eflornithine example on page 23?

4. How does Summers calculate the costs of injury and death? Why is his way objectionable? What alternatives are there?