That's when I came across the name of Army Sgt. Willsun Mock, 23, of Harper, Kansas. The realization that he died crashed down on me. (Watch Mock describe the thoughts and fears of a soldier at war -- ...

Arwa Damon, President and Founder of the humanitarian organization INARA that operates in Gaza and other countries in the region, joins Ayman Mohyeldin, Antonia Hylton and Catherine Catherine Rampell ...