PINQ: 1. What was the most significant lesson you learned from the paper? 2. What was the weakest/most questionable part(s) of the paper or how could the paper be improved? 3. Does PINQ use the "global model" or "local model" (from the series of blog posts)? 4. Optional: What topic would you most like to see discussed in class, or question you would most like to have answered, if any?