What is the role of modern monarchy? With the third season of "The Crown" on Netflix, we continue to be fascinated by the royal family. The announcement last week by Prince Harry and his wife, Meghan Markle, that they intended to step back from official royal duties and move to North America, overshadowed even the British parliament vote on Brexit. Is this the beginning of the end of the monarchy? We look at the role of today's royals through the lens of the popular Netflix series "The Crown."