Daniel Hsu, a Chinese American, poses for a portrait in the apartment he has been renting in Shanghai, China on Monday, April 13, 2020. Hsu, a U.S. citizen, has not been convicted of any crime in China, yet he was detained for six months in solitary confinement under conditions that could qualify as torture under international conventions. Authorities from eastern Anhui province placed exit bans on Hsu and his wife, Jodie Chen, blocking them from returning home to suburban Seattle in August 2017 and effectively orphaning their 16-year-old daughter in America. (AP Photo)

Jodie Chen, left, holds a photo of her husband, Daniel Hsu, as their daughter, Mandy Luo, looks on in their home in Issaquah, Wash., on Monday, April 13, 2020. The family is waiting for husband and father Daniel Hsu to be allowed to leave China and return home. (AP Photo/Elaine Thompson)

This photo provided by Daniel Hsu shows him, his wife, Jodie Chen, and the U.S. Consul General in Shanghai Sean Stein before her flight home to her daughter in Seattle, after being blocked from leaving China for nearly three years. The U.S. diplomat escorted her to the departure gate. (Courtesy Daniel Hsu via AP)

Jodie Chen, right, and her daughter, Mandy Luo, sit together in their home in Issaquah, Wash., on Monday, April 13, 2020. After being away from her daughter for three years, Chen arrived days earlier from China and is self-quarantining at home out of an abundance of caution for the COVID-19 coronavirus. The family is waiting for husband and father Daniel Hsu to be allowed to leave China and return home. (AP Photo/Elaine Thompson)

Daniel Hsu, a Chinese American, poses for a portrait near the apartment he has been renting in Shanghai, China on Monday, April 13, 2020. Hsu, a U.S. citizen, has not been convicted of any crime in China, yet he was detained for six months in solitary confinement under conditions that could qualify as torture under international conventions. Authorities from eastern Anhui province placed exit bans on Hsu and his wife, Jodie Chen, blocking them from returning home to suburban Seattle in August 2017 and effectively orphaning their 16-year-old daughter in America. (AP Photo)

Jodie Chen, right, and her daughter, Mandy Luo, pose for a portrait at their home in Issaquah, Wash., on Monday, April 13, 2020. After being away from her daughter for three years, Chen arrived days earlier from China and is self-quarantining at home out of an abundance of caution for the COVID-19 coronavirus. The family is waiting for husband and father Daniel Hsu to be allowed to leave China and join them in the U.S. (AP Photo/Elaine Thompson)

U.S. citizen Daniel Hsu poses for a portrait in the apartment he has been renting in Shanghai, China on Monday, April 13, 2020. Friends offered Hsu jobs or money to start a restaurant in Shanghai. But he always declined, worried he’d get them in trouble. He couldn’t work legally because he had a U.S. passport with an expired visa and the Anhui authorities wouldn’t give him paperwork needed to get a new one. (AP Photo)

Jodie Chen, right, and her daughter, Mandy Luo, pose for a portrait in their home in Issaquah, Wash., on Monday, April 13, 2020. After being away from her daughter for three years, Chen arrived days earlier from China and is self-quarantining at home out of an abundance of caution for the COVID-19 coronavirus. The family is waiting for husband and father Daniel Hsu to be allowed to leave China and return home. (AP Photo/Elaine Thompson)

Daniel Hsu, a Chinese American, poses for a portrait near the apartment he has been renting in Shanghai, China on Monday, April 13, 2020. He has been kept from leaving China by an exit ban issued by the Chinese authorities in hopes of pressuring his father to return to China to face criminal charges. (AP Photo)

This photo provided by Daniel Hsu shows his wife, Jodie Chen, standing next to the car of the U.S. consul-general in Shanghai, before her flight home to her daughter in Seattle, after being blocked from leaving China for nearly three years. The U.S. diplomat escorted her to the departure gate. (Daniel Hsu via AP)