A 2011 earthquake sent pieces of the famed Washington National Cathedral flying. More than a decade later, the rebuilding effort continues, with the help of a robot. It is helping re-create intricate stone pieces that cracked or shattered when the earth moved in Washington, D.C. on Aug. 23, 2011. But it’s a tug-of-war between the efficiency of a machine and artistry created by a human hand. Read more: https://wapo.st/4aqQm1L. Subscribe to The Washington Post on YouTube: https://wapo.st/2QOdcqK

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