Does the president of the United States know all the secrets of the United States? How can we ensure that he won't reveal the secret after he leaves office?

The United States has a strict secrecy system. For the president of the United States, he is very aware of the importance of these things. He will not disclose many things he knows to anyone, including his parents, wife, brothers and other family members, and he is not allowed to disclose them to the outside world. Otherwise, it is treason. In addition, the president of the United States generally knows the general framework of an American state secret, and it is impossible to understand it all. Many secrets are held by the CIA and the FBI.

Regarding the question you mentioned:

1. If threatened, this possibility is very slim. The president and the White House are surrounded by superb agents and bodyguards, and there are all free security facilities. At present, in order to prevent the security of the president from being threatened, it is difficult for terrorists to get close to the president.

In addition, the president of the United States generally knows the general framework of an American state secret, and it is impossible to understand it all. Many secrets are held by the CIA and the FBI.

2. In this case, the President will terminate a certain construction, which needs the approval of Congress and relevant departments. The president himself has no right to decide everything.

What's more, you said it by accident. This possibility is almost nonexistent. The president is not an ordinary person. He can't make such a mistake, and the person who can make such a low-level mistake will definitely not be president.

After the president leaves office, many related secrets and passwords need to be revised. In addition, the outgoing president also has special protection. So far, the United States has hardly threatened the outgoing president.