1. Which Vietnamese mathematics professor is a famous intelligence agent?

  • Pham Xuan An
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  • Nguyen Dinh Ngoc
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  • Nguyen Ngoc Nha
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Exactly

According to Events & Witnesses (monthly magazine of the People's Army newspaper), during the anti-American war, Major General, Professor Nguyen Dinh Ngoc, former Director of the Department of Telecommunications and Information Technology ( Ministry of Public Security ) was a spy of the Security Department, Central Office for Southern Vietnam. In October 1954, when he was only 22 years old, he went to the South to fight on the silent front.

Lieutenant General Nguyen Phuoc Tan, also known as Hai Tan, former Deputy Director of the General Department of Security, Ministry of Public Security, in an interview with the People's Police newspaper, affirmed that comrade Nguyen Dinh Ngoc, working in a single line under his direct command, had achieved many strategic feats.

2. Where is this professor from?

Exactly

Professor Nguyen Dinh Ngoc was born in Phuong Vu, Phuong Duc, Phu Xuyen, Ha Dong (now part of Hanoi).

When the August Revolution broke out in 1945, his father was the Indochinese physician Nguyen Dinh Diep, the Chief Medical Officer of the Vinh Phuc Regiment, stationed in Phuc Yen, Vinh Phuc. Mr. Nguyen Dinh Ngoc was then a liaison officer for the regiment. In early October 1947, the French army launched a large-scale sweep in the Northern Delta and captured him and his father.

On the way back to Hanoi, they killed his father near Duong Bridge, and Mr. Ngoc was brought back for questioning. Seeing that he was still young and could not be questioned, they were forced to release him. His family lived at 121 Hang Bac Street (Hanoi) at that time. Mr. Ngoc and his younger brother studied at Buoi School (Chu Van An High School today).

3. Under what circumstances did he become a spy?

  • Introduced to a revolutionary base and enrolled in spy training
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  • After studying in France
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  • Introduced by father
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Exactly

Doctor Nguyen Dinh Kim, former Deputy Director of the Central Lung Hospital, the younger brother of the late Major General Nguyen Dinh Ngoc, once shared with Events & Witnesses that: In 1950, Mr. Nguyen Dinh Ngoc passed the baccalaureate exam with the highest score. While in his second year of college, Mr. Ngoc pretended to be a young priest studying at a seminary, and went to the liberated zone in the Central region to find a way to join the resistance. Through a revolutionary base in Vinh (Nghe An), Mr. Ngoc met the Director of the Inter-Zone 4 Police Department, Nguyen Huu Khieu, and was selected to attend a spy training class in the mountainous area of ​​Yen Thanh district, Nghe An province.

After completing the spy course, Mr. Ngoc was directly assigned by his chief Nguyen Huu Khieu to infiltrate the flow of migrants to the South and operate in a single line. Mr. Ngoc was assigned to continue his studies, win a scholarship to study in France to obtain a scientific degree, and return to the country to create a solid cover among the upper class and intellectuals of Saigon to conduct intelligence activities. He took the alias "Diep Son", combining the names of his father and his unfortunate younger brother who died at the age of 3.

4. During your time studying abroad, how many degrees did you get?

  • 3 engineering degrees and 2 doctorates
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  • 1 engineering degree, 1 PhD degree
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  • 2 PhDs
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Exactly

According to the People's Police newspaper, during his time studying in France, Mr. Nguyen Dinh Ngoc was awarded degrees in Hydrometeorology Engineer, Telecommunications Engineer, Shipbuilding Engineer, Doctor of Mathematics, Doctor of Meteorology - Dynamics. He was fluent in the following foreign languages: French, English, Russian, German.

5. After returning home, he became a professor at which university in Saigon?

  • Saigon University of Arts
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  • Saigon University of Science
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  • Saigon Medical University
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Exactly

According to Nhan Dan newspaper, in mid-1966, Nguyen Dinh Ngoc received instructions to return home and find a place in the intellectual and academic circles of Saigon. He became a professor at Saigon University of Science (now University of Natural Sciences, Ho Chi Minh City National University).

In addition to being a lecturer at the school, he was also invited to collaborate with many computer facilities of the Saigon military and police forces as well as at several electronic centers of the US military.

From his relationships with military generals, his sharp intelligence as a spy, combined with his ability to process precise information as a mathematician and his excellent memory, he achieved many feats during nearly 10 years of the resistance war against America to save the country.

6. Did you have any special habits to lose a stalker?

  • Walk in the opposite direction
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  • Travel by car only
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  • Travel by bicycle only
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Exactly

According to Professor Nguyen Huu Viet Hung in Tia Sang magazine, in Saigon, Professor Nguyen Dinh Ngoc was famous for his eccentricity. On hot days, he still walked even though his salary was enough to buy a car. Later, Professor Ngoc said that he walked like that to make the followers (if any) give up. He analyzed that these people were often lazy and used to following him by car or motorbike. He chose a one-way street, and walked against the flow of traffic for dozens of kilometers before reaching the meeting point.

"The tails (if any) all fell off, because of laziness. Moreover, going against the flow of traffic like that, he had the opportunity to look into the windshield of oncoming cars to see if anyone was following him. So that's the eccentricity of the intelligence professor," Professor Nguyen Huu Viet Hung wrote.

Source: https://vietnamnet.vn/vi-giao-su-toan-hoc-nao-cua-viet-nam-la-mot-tinh-bao-noi-tieng-2406566.html