BEIJING, Oct 11 (Reuters) - Australian journalist Cheng Lei returned home on Wednesday after being detained by Chinese authorities for more than three years on national security charges. Here are some other high-profile cases of foreign nationals detained in China: YANG HENGJUN The Australian writer has been detained in China for more than three years, and in 2021 was tried in Beijing on undisclosed national security charges. His arrest coincided with worsening relations between Australia and China and a verdict in his case has been repeatedly delayed. Yang, who was born in China but is an Australian citizen, has denied...