Chinese activist Chen's supporters

Chinese activist Chen's supporters

WASHINGTON, United States - Fu Xiqiu (L front), founder and president of the ChinaAid Association, seated next to Rep. Christopher Smith (C front), speaks with Chinese legal activist Chen Guangcheng by phone, at the U.S. congress subcommittee in Washington on May 15, 2012.

Chinese activist under U.S. protection

Chinese activist under U.S. protection

BEIJING, China - Photo taken April 28, 2012, shows the U.S. Embassy in Beijing. Prominent Chinese human rights activist Chen Guangcheng has apparently been given sanctuary at the embassy after fleeing from house arrest, Texas-based human rights group ChinaAid and Chen's supporters said the same day.

Chinese activist under U.S. protection

Chinese activist under U.S. protection

BEIJING, China - Photo taken April 28, 2012, shows police vehicles keeping watch on the U.S. Embassy (shown in the background) in Beijing. Prominent Chinese human rights activist Chen Guangcheng has apparently been given sanctuary at the embassy after fleeing from house arrest, Texas-based human rights group ChinaAid and Chen's supporters said the same day.

Chinese activist under U.S. protection

Chinese activist under U.S. protection

BEIJING, China - Photo taken April 27, 2012, shows the U.S. Embassy in Beijing. Prominent Chinese human rights activist Chen Guangcheng has apparently been given sanctuary at the embassy after fleeing from house arrest, Texas-based human rights group ChinaAid and Chen's supporters said April 28, 2012.

Chinese activist Chen's supporters

Chinese activist Chen's supporters

WASHINGTON, United States - Fu Xiqiu (L front), founder and president of the ChinaAid Association, seated next to Rep. Christopher Smith (C front), speaks with Chinese legal activist Chen Guangcheng by phone, at the U.S. congress subcommittee in Washington on May 15, 2012. (Kyodo)

Chinese activist under U.S. protection

Chinese activist under U.S. protection

BEIJING, China - Photo taken April 27, 2012, shows the U.S. Embassy in Beijing. Prominent Chinese human rights activist Chen Guangcheng has apparently been given sanctuary at the embassy after fleeing from house arrest, Texas-based human rights group ChinaAid and Chen's supporters said April 28, 2012. (Kyodo)

Chinese activist under U.S. protection

Chinese activist under U.S. protection

BEIJING, China - Photo taken April 28, 2012, shows police vehicles keeping watch on the U.S. Embassy (shown in the background) in Beijing. Prominent Chinese human rights activist Chen Guangcheng has apparently been given sanctuary at the embassy after fleeing from house arrest, Texas-based human rights group ChinaAid and Chen's supporters said the same day. (Kyodo)

Chinese activist under U.S. protection

Chinese activist under U.S. protection

BEIJING, China - Photo taken April 28, 2012, shows the U.S. Embassy in Beijing. Prominent Chinese human rights activist Chen Guangcheng has apparently been given sanctuary at the embassy after fleeing from house arrest, Texas-based human rights group ChinaAid and Chen's supporters said the same day. (Kyodo)