Dr Gus Sinnis (Los Alamos National Laboratory)
1. Why is it important to detect GZK neutrinos and what are the prospects for detecting them? What experimental program is required to do this in the next 5-20 years? 2. What are the roles and impact of cosmic-ray, gamma-ray, and neutrino experiments for particle physics? What future experiments are needed? 3. What will it take to identify the mechanism for baryogenesis or leptogenesis?