Especially because President Obama has barred enhanced-interrogation techniques, such long-term psychologicalpressure can be crucial to learning if the brothers worked with anyone else, if they received terrorist training, and more.
Iranian state radio has reported that Mr Amiri said in a telephone interview from inside the Iranian interest section that he had been "under enormous psychologicalpressure and supervision of armed agents in the past 14 months".
"Chinese society has generated enormous pressure on individuals and some of those individuals have perhaps had emotional and psychological problems, " sociologist Ding Xueliang said.