On this Veteran's Day Sheilah Kast speaks to Lieutenant Kawika Segundo, a Purple Heart recipient and bone marrow donor. We'll hear about his donation experience and find out why the matching process is so difficult for some patients. If you would like to become a donor, information from the National Marrow Donor Program is available here.
Then, astrophysicist Mario Livio joins Midday to mark the 100th anniversary of Albert Einstein's theory of general relativity. Livio tells us how Einstein's theory shaped our understanding of space, time, and gravity, and how we can see it in action in our daily lives.