Lee Ching-yu, wife of Taiwanese NGO worker Lee Ming-cheh who is under investigation in China for suspected activities "endangering national security", shows a letter of invitation from the US House Committee on Foreign Affairs at a press conference at the Parliament in Taipei on May 23, 2017, where she spoke about her recent trip to Washington to testify during a hearing entitled 'Disappeared, Jailed, and Tortured in China: Wives Petition for Their Husbands Freedom'.
NGO worker Lee, 42, was last heard from on March 19 after he entered the southeastern Chinese city of Zhuhai from the semi-autonomous enclave of Macau.  / AFP PHOTO / SAM YEH        (Photo credit should read SAM YEH/AFP/Getty Images)