May 2011, the United Nations Working Group on Arbitrary Detention (WGAD) made a statement declaring that "The deprivation of liberty of Liu Xia, being in contravention to articles 9, 10 and 19 of the Universal Declaration of Human Rights, is arbitrary, and falls within categories II and III of the categories applicable to the cases submitted to the Working Group" and called for an immediate end to the house arrest. In late 2012, Liu Xia spoke briefly with journalists from The Associated Press who managed to visit her apartment. A video was later uploaded to YouTube showing another brief, unauthorized visit on 28 December 2012 in which Liu Xia and several persons converse briefly in her home. On 23 April 2013, she was allowed out to see her brother's trial, which Liu Xia felt was politically motivated. Her brother's lawyers said that the purported dispute had been resolved, but was brought back into court for some reason. Human rights activist Nicholas Bequelin asserted that this trial was therefore an act of attempted intimidation by the government in order to silence Liu Xia even further. During her brief stint out of her house, where she is allowed no internet, no phone, and few visitors, she found a welcoming crowd waiting for her. She shouted to them, "Tell everybody that I'm not free"; "I love you. I miss you."; and she blew kisses. On 19 November 2013, she filed an appeal for Liu Xiaobo's retrial, a move that's been called "extraordinary" because the action could refocus the world's attention on China's human rights record. According to her attorney, Mo Shaoping, Liu Xia visited her husband in Jinzhou Prison in Liaoning and had gained his approval before filing this motion. In December 2013, a friend of hers, Hu, told BBC that three years of house arrest had thrown Liu into deep depression and a health professional had been prescribing anti-depressant medication for her. The Silent Strength of Liu Xia is a collection of 25 black-and-white photographs Liu Xia produced between 1996 and 1999 while her husband served his second stint in a labor re-education camp. It is the only exhibition of Liu Xia's photographic work in the United States. French scholar Guy Sorman, a longtime friend of Liu Xia and her husband, transported the prints out of China and curated the exhibition at the Italian Academy for Advanced Studies at Columbia University. In