The apartment building where Liu Xia, the wife of late Nobel laureate Liu Xiaobo, lives is seen in Beijing on July 21, 2017. More than a week after the Nobel Peace Prize winner succumbed to liver cancer in custody, four agents stood watch on the stoop of the apartment where his widow, the poet Liu Xia, has largely been kept under house arrest since 2010. / AFP PHOTO / GREG BAKER (Photo credit should read GREG BAKER/AFP/Getty Images)
