During the Cold War, the Soviet Union sent a gift to the U.S. Embassy, and even let the U.S. state secrets be eavesdropped by the Soviet Union for 7 years. During these 7 years, the U.S. Embassy in the Soviet Union let the Soviet Union know about whatever plan it was plotting, but the Americans could never find any clues.
So, what exactly is this gift from the Soviet Union. What mystery is hidden in it, why haven't americans discovered it for 7 years? In this issue, the army will decipher the truth behind this mysterious gift for everyone.

In 1933, the Americans sent ambassadors to the Soviet Union, and the Soviets also sent ambassadors to the United States, which in a sense represented the establishment of a relationship of mutual trust between the two great powers at that time. But in two countries with completely different political systems and ideologies, it is still a little difficult to establish true mutual trust.
Therefore, the two countries have been wary of each other from the beginning, and even secretly fought each other. Beginning in the 1930s, the Soviets tried again and again to install wiretaps in U.S. embassies, but each time without success.
The U.S. Embassy was so heavily guarded that almost anything that entered the U.S. Embassy had to go through a long period of scrutiny that the Soviet Union could not find any excuse to hand over items containing wiretaps to the U.S. Embassy. Even the cleaners hired by the U.S. Embassy had to be brought in from the U.S. mainland, let alone sent straight in to install them.
Stalin at that time gave death orders to the Soviet intelligence agencies, demanding that they install wiretaps in the American Embassy without being detected, no matter what means they used.
The KGB arguably took pains to order, and they secretly replaced all the surrounding occupants with agents whose mission was to monitor the U.S. Embassy's every move. At the same time, they also believe that some people in the US embassy must have some moral weaknesses, so they sent a large number of female agents to take advantage of their youthful beauty and other characteristics to hook up with US intelligence personnel and obtain certain intelligence from them.
This method is easier to say against the lower-level employees of the American intelligence agencies, but it is not very easy to deal with the old and cunning intelligence bosses. They had tried everything they could to pry open the mouth of U.S. Ambassador William Harriman, but William Harriman, as a four-star U.S. general, was not someone who could pry his mouth open so easily.
Therefore, Soviet intelligence agencies found the famous scientist LeonTremen, hoping that he would find a technical means to invade the U.S. embassy. The scientist was also very interested in breaking through the world's most stringent security embassies, so he began to study it intently.
After research, he finally came up with a solution. He thought it was possible to carry out a Trojan horse operation against the U.S. Embassy.
Tremen was a very famous physicist in the Soviet Union, and his radio frequency identification technology contributed greatly to the development of communication technology in the world. He personally went out and made the officials of the Ministry of The Interior feel the amnesty in an instant. Stalin himself was very concerned about the physicist's joining, and even held a secret meeting with Tremen, and said that you can do it boldly with confidence, with the entire Soviet Union as your backing.
Tremen believed that the most difficult place to break through the operation was the easiest to break, and they could send the wiretaps directly to the U.S. ambassador's office by some means. In the beginning, they wanted to sneak the bugging devices into the U.S. Embassy in the form of fake fires. But the U.S. Embassy would not allow anyone to enter even if there was a fire, and the Soviet plan was ruined.
With the end of the Second World War, the smoke of the Cold War has begun to slowly condense. In this war without smoke of gunfire, the secret war between the United States and the Soviet Union can be said to have never been interrupted. At this point, the KGBs decided it was necessary to use the old method of using a gift to cram a bugger in it and then sending the gift to the U.S. Embassy.
The next step is to see if this gift can fool the eyes and ears of the US Embassy.
On February 9, 1945, many middle school students from the Soviet Union came to the Ertaike region to hold a summer camp for the Young Pioneers. At the opening ceremony of this summer camp, the U.S. ambassador was also present. In fact, in order to trick the American ambassador from Moscow to Crimea, the Soviets also took pains.
At that time, the Soviet Union invited US Presidents Roosevelt and Churchill to the Soviet Union to participate in the opening ceremony of the summer camp, saying that the opening ceremony would show the determination of the world to fight fascism. In the face of such an invitation, both the United States and Britain must take it very seriously, but the heads of state of both countries could not come to the Soviet Union in person, so they had to send their ambassadors to the Soviet Union to participate in the event in Crimea.
U.S. Ambassador Harriman went to crimea to attend the opening ceremony of the summer camp. Since this time he came first on behalf of the president, Harriman was in a good mood. At the opening ceremony, the orchestra played the American national anthem, and the Young Pioneers of the Soviet Union sang together in English in a childish child's voice. Harriman's guard was put down, after all, who would have doubted an innocent child?
At this moment, four Young Pioneers carried a large wooden American national emblem to Ambassador Harriman, saying that it was a gift to the Americans. When the American diplomat saw this domestic product, his eyes were straight, because his workmanship was too exquisite. Sitting next to him was Stalin's secretary, Brezhkov, who began to tell the American ambassador that in order to show the friendship between the Soviet Union and the United States, the coat of arms, made of rosewood, sequoia, mahogany and black wood, was a great work of the best craftsmen in all of Russia, and that only by hanging it in the office of the American Embassy could the friendship between the United States and the Soviet Union be revealed.
Ambassador Harriman immediately said that this was an unparalleled gift and that he would certainly do so. But the ambassador did not lose his mind, and after transporting the coat of arms to the U.S. Embassy, he immediately called in all the intelligence officers to study the coat of arms.
The final result of the study was that there were no electronic components in it, which was a pure craft. So the U.S. ambassador hung the coat of arms in his office.
Since February 1945, the coat of arms has been working for the Soviet Union. The Soviets, who named the operation confessions, began eavesdropping on U.S. secrets.
With the official end of World War II, the secret war between the United States and the Soviet Union had begun, but the American ambassador at this time was surprised to find that no matter what he was plotting in the embassy, the Soviet side always knew about it at the first time.
In fact, the Soviets did hide a bugging device in this parliament, but this bugging device was completely different from ordinary wiretaps, because this bugging device basically did not contain any electronic components. The structure of this bugging device is very simple, shaped like a tadpole or a pin, there is no circuit inside, only a resonant film, a tuning column, and the resonance inside and a metal antenna leaking outside.
In fact, when the national emblem was taken apart and examined at that time, the Americans had already discovered this strange thing, but at first everyone thought it was just a pin, so they didn't pay too much attention. Later, some Americans once suspected that this was a wiretap device, and they copied an exactly the same thing, but the end result was in vain, and they could not eavesdrop on anything at all.
Therefore, Americans believe that the source of possible eavesdropping is not here. In fact, this bugging device works very specially, it does not need to install a battery, only need to use some external equipment to irradiate it with high-frequency electromagnetic waves of a specific frequency, and then the bugging device in this national emblem will start working. The regulator at the receiving end of the signal began to restore the sound, and the Soviet side could hear the discussion in the American embassy very clearly.
The device was actually developed in December 1943, when the person in charge of the eavesdropping device was Beria, the head of the KGB. After the coat of arms was successfully transported to the U.S. Embassy as a Trojan horse, Soviet agents had already taken advantage of their previous advantages and began manipulating microwave oscillators through other agents living around the U.S. Embassy.
This microwave oscillator was also used in a special way, that is, a group of KGB agents pretending to be Soviet housewives. They had to dry carpets, bedding and other things on the balcony every Sunday, and they kept shaking the dust. In fact, while the clothesline was shaking, the signal transmitter had already launched the microwave into the U.S. Embassy. Dubbed the Golden Lip, this project was arguably one of the greatest eavesdropping inventions of the entire 20th century.
Although the Americans always knew that their embassy had been tapped, they were never able to find any eavesdropping devices. The eavesdropping effort lasted eight years, and in that eight years, the owners of the U.S. Embassy had changed four times, and none of them thought that the national emblem behind them was the device used to eavesdrop.
They are very interested in this beautiful national emblem, and even in order to match the color of this national emblem, they also match the curtains and furniture colors of the US Embassy. It is unknown how much classified information the eavesdropping device delivered to the Soviet Union over the course of eight years.
It wasn't until 1953, when the U.S. Embassy was once again eavesdropped, that the entire U.S. national security service went crazy and decided to do whatever it took to figure out what the Soviets were using to eavesdrop on U.S. state secrets. The U.S. ambassador at the time was george kennan, a famous American politician who sent a lot of agents to start collecting special signals around him, and eventually all the evidence pointed to the deep national emblem.
When they opened the coat of arms and took out what looked like a pin inside, they found that the strange signal had disappeared, and it seemed that the culprit of everything belonged to the pin. Suddenly, the entire US intelligence community was in an uproar, and all the US intelligence officials thought that this matter was too shameful and should not be publicized everywhere with great fanfare, so the matter was suppressed by the US government.
It was not until later when the Soviet Union condemned the U2 reconnaissance plane of the United States entering the Soviet Union for reconnaissance at the United Nations General Assembly that the Americans could not bear it, and took the national emblem containing the wiretap device to the table and confronted the Soviets in court, which made this incident public. This incident can be said to have become a legend in the history of espionage warfare in the last century.
But today, this technology is no longer an unattainable secret. Instead, we have similar technology in our access and bus cards. It can be said that it is also a legend witnessed around us.