When the restaurant elevator doors opened onto a crowd of people, many holding video cameras, Kevin and Julia Garratt thought they had stumbled into a wedding party. But this was no celebration. In a flash, the Garratts were snatched by men and shoved into separate cars. They would not see each other for more than two years. On the night of Aug. 4, 2014, the Garratts, Canadian Christian aid workers who lived in the northeastern Chinese city of Dandong, did not know they were in the hands of China’s feared Ministry of State Security. The men drove Ms. Garratt, 55, to an office building and demanded that she sign a document stating that she agreed to be investigated. Read more