Michelle Obama in China

Gallery: U.S. first lady Michelle Obama, right, speaks next to U.S. Ambassador to China Max Baucus as they attend a round table discussion on education at the U.S. Embassy in Beijing, China Sunday, March 23, 2014.

Gallery: U.S. first lady Michelle Obama waves to a group of American schoolchildren who are visiting China during their spring break before they watch a Peking opera performance at the Summer Palace in Beijing, Saturday, March 22, 2014.

Gallery: First lady Michelle Obama tries her hand at writing the Chinese character for "eternal" or "forever," a difficult task, given it involves all eight basic strokes of Chinese calligraphy. She is with Peng Liyuan, wife of Chinese President Xi Jinping, and students of the Beijing Normal School in Beijing. Far right is Liu Yijie, 17, who is quoted as saying in my story "Ms. Obama held her brush really well." Friday, March 21, 2014.

Gallery: First lady Michelle Obama speaks at the Stanford Center at Peking University in Beijing, China, on March 22, 2014.

Gallery: First lady Michelle Obama talks with students after her speech at the Stanford Center at Peking University in Beijing, China, on March 22, 2014.

Gallery: U.S. first lady Michelle Obama, left, and Peng Liyuan, wife of Chinese President Xi Jinping pose for photos at Forbidden City in Beijing, China Friday, March 21, 2014.

Gallery: First lady Michelle Obama plays table tennis at the Beijing Normal School, which prepares students to attend colleges overseas, in Beijing, March 21, 2014. Michelle Obama, on the first day of a good-will tour to China with her daughters and mother, toured several locations with Peng Liyuan. (Andy Wong/Pool via The New York Times) -- EDITORIAL USE ONLY

Gallery: U.S. first lady Michelle Obama, center, and Peng Liyuan, wife of Chinese President Xi Jinping, center left, are escorted by officials as they visit Forbidden City in Beijing, China Friday, March 21, 2014.

Gallery: First lady Michelle Obama and her counterpart, Peng Liyuan, wife of Chinese President Xi Jinping, (in center, blue outfit) tour the Forbidden City in Beijing under heavy security, Friday, March 21, 2014.

Gallery: U.S. first lady Michelle Obama, third from right, her daughters Malia, right, and Sasha, second from right, is greeted by Chinese President Xi Jinping, second from left, and his wife Peng Liyuan, left, at the Diaoyutai State guest house in Beijing, China Friday, March 21, 2014. U.S. first lady Michelle Obama met with excited students who were building robots and tried her hand at Chinese calligraphy Friday during a tour of a Beijing high school.