Shan Xiangshuang, a billionaire member of the Chinese Communist Party and founder of the $10 billion private equity firm CSC Group, is under investigation by the FBI for espionage. Shan, who previously served as a civil servant, has been a significant investor in the US tech sector. His firm, CSC Group, has been described as a 'direct train' to Silicon Valley, aimed at accelerating the introduction of foreign high-tech technologies into China. Five years ago, Shan expressed his vision for this initiative. The investigation has triggered official concerns in the US about potential espionage activities.