What did Qian Xuesen do when he returned to China?

1949 Mid-Autumn Festival, the good news of the founding of New China spread to the other side of the ocean. Qian Xuesen and a dozen overseas students from China poured out their hearts while enjoying the moon. On this beautiful day of full moon reunion, Qian Xuesen sprouted the idea of returning to China as soon as possible to serve the motherland. Just as Qian Xuesen was actively preparing to return to China, the Korean War broke out, which set off a crazy counter-current in the United States. Qian Xuesen was suspected of being involved in the case of Weinbaum, secretary of Marxism-Leninism in the college. The US government decided to disqualify him from participating in confidential research and accused him of being an American-made party member and entering the country illegally. Qian Xuesen formally applied to return to China while refuting the accusation of the United States. Just two days before he planned to leave Los Angeles, the immigration suddenly ordered him not to leave the United States, and the customs detained all his luggage. 1On September 6th, 950, Qian Xuesen was illegally detained by the FBI, which aroused the strong indignation of international students in China. Professor von Carmen, Qian Xuesen's mentor and known as the "father of supersonic flight", finally bailed him out. However, the FBI did not let go of the persecution of Qian Xuesen and tried every means to set up obstacles to prevent him from returning to China. In order to paralyze the American authorities, Qian Xuesen chose "engineering cybernetics" to study. Ironically, at that time, the American authorities were still in the dark about the relationship between engineering cybernetics and military affairs. 1one day in June, 955, Qian Xuesen got rid of the spy's stalking and put a cigarette paper in his letter to his relatives in Belgium. The cigarette paper was addressed to Chen Shutong, then vice chairman of the National People's Congress Standing Committee (NPCSC). He urgently asked for instructions to help him return to China as soon as possible through diplomatic channels. Therefore, in the ambassadorial talks between China and the United States, China's Ambassador Wang Bingnan took Qian Xuesen's personal letter and asked the United States to allow Qian Xuesen to return to China by name. After some bargaining, the Chinese and American senators reached an agreement on the premise of exchanging prisoners of war as soon as possible. 1955 September 17, Qian Xuesen boarded the American "President Cleveland" and returned home.

"I have always believed that I will be able to return to my motherland. Today, I finally came back! " This is the voice of Qian Xuesen when he set foot on his way home.