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Free speech is a touchy subject in China. The New York Times notes Obama's statement "came against a backdrop of broad censorship of the Internet by the Chinese government. The government polices the Internet to prevent the nation's 500 million users from seeing anti-government sentiment."
Although Obama stopped short of pointing a finger directly at China's so-called Great Firewall, ABC News points out the first lady's comments still came as a bit of a surprise.
"The White House, as you said, had said Mrs. Obama would shy away from political issues. But access to the Internet and social media we know is very much a hot-button issue," ABC News reported.
And the BBC notes there might still be one more point of contention on her tour; Obama is scheduled to dine at a Tibetan restaurant during her trip, which some Chinese media outlets have read as a show of support for Tibetans who resent China's repressive rule.
Less controversially, Obama also addressed the missing Malaysian Airlines Flight 370 during her speech, saying her family kept the missing passengers and crew, as well as their families, in their thoughts and prayers. (Via NBC)
The first lady's next stop is the city of Xi'an, home of the famous Terra Cotta warriors, followed by Chengdu, which features a panda enclosure. Her stay in China ends March 26.