BEIJING, CHINA - MARCH 23:  (CHINA OUT) U.S. First Lady Michelle Obama and her daughter Malia visit the Great Wall at Mutianyu on March 23, 2014, in Beijing, China. The first lady arrived in Beijing on March 20 with her mother, Marian Robinson, and daughters to kick off a six-day tour where she will focus on education and cultural exchange.  (Photo by VCG/VCG via Getty Images)