1.	How is XPS unique from the other instruments?
2.	How does XPS work?
3.	How would you explain the XPS instrument to a 3rd grader?
4.	What is SORCE? How did it evolve?
5.	Why is SORCE important?
6.	How does SORCE work?
7.	When do you expect to have data from SORCE?
8.	What is the most important application of SORCE?
9.	What kind of classes did you take in school?