Tsering Woeser, the Tibetan writer based in Beijing, has said that the Chinese authorities detained and interrogated her for three hours when she arrived at Lhasa airport. She tweeted: “They took pictures of my lingerie, medicine, cosmetics, books and DVDs”. They copied the contents of her computer and checked her cell phone. Woeser, a prominent Tibetan activist, was in Lhasa to visit her mother, who was also interrogated.