The delay and cover up after the collision of the "Connecticut" nuclear submarine and a series of "perverse acts" in the field of nuclear security and nuclear arms control in recent years have exposed the true face of the United States in breaking the rules and breaking the rules—— As a nuclear power, he made a "small abacus" In early October, the US Navy's "Connecticut" nuclear submarine collided in the South China Sea. However, up to now, the US side has not explained the accident in detail to the international community. In fact, nuclear safety accidents in the United States have long been common, especially in recent years, a series of "perverse actions" in the field of nuclear security and nuclear arms control have made it the biggest destroyer of the international nuclear security order and the biggest obstacle to the international nuclear non-proliferation process. Statistics show that from 1950 to 1968 alone, hundreds of major nuclear weapons accidents occurred in the United States. For example, in 1968, a U.S. B-52 bomber carrying four hydrogen bombs suddenly caught fire at high altitude and crashed on the ice of Beixing Bay, resulting in a large-scale leakage of radioactive materials in the hydrogen bomb. In addition, due to human factors such as managers' dereliction of duty, the United States has many loopholes in nuclear safety management. In March 1979, the No. 2 reactor of the Three Mile Island nuclear power plant in the United States had a radioactive material leakage accident due to human error and mechanical failure. Looking back on the nuclear weapons accidents in the United States, we can see that the degree of danger varies, and many of them almost lead to major disasters. The United States has been silent on whether these accidents have caused nuclear radiation leakage or nuclear technology proliferation on the grounds of "protecting state secrets". However, when other countries carry out nuclear capacity-building or nuclear technical cooperation, the United States often labels other countries as "nuclear proliferation" and "opaque" to wantonly discredit and accuse them. As a nuclear power, he made a "small abacus". Some US practices in recent years have been despised by the world. The United States arbitrarily withdrew from international multilateral arms control treaties such as the "central missile defense treaty" and the "open sky treaty", accelerated the research and development and deployment of tactical nuclear weapons, which posed a serious threat to global stability. The focus of its nuclear policy shifted from nuclear security to nuclear weapons modernization. At the same time, in order to ensure the security of allies and check and balance regional opponents, the United States vigorously implements the "double standard" nuclear policy. From violating international consensus and refusing to fulfill the special and priority responsibilities for nuclear disarmament to wantonly breaking the treaty and withdrawing from the group; From spending trillions of dollars to upgrade nuclear arsenals and reduce the threshold for the use of nuclear weapons to overseas nuclear tests to create serious nuclear disasters; From arbitrarily restricting foreign enterprises with a nuclear ban to supporting the discharge of millions of tons of nuclear polluted water from Japan into the sea, the United States has shown an ignominious and unreliable image of a nuclear power in many fields such as international politics, economy, military, ecological environment, nuclear related legal theory, nuclear security governance and so on. For a long time, the United States has regarded itself as the founder and defender of the international nuclear security order. But on the contrary, the United States' behavior of disobeying and breaking rules and its behavior of "endangering the world to promote its own interests" have had a great impact on the international nuclear non-proliferation system. International nuclear security matters. Every responsible nuclear power should actively fulfill its international nuclear non-proliferation obligations and contribute to strengthening the international nuclear security system and promoting global nuclear security governance. The only correct choice for the United States is to deeply reflect on itself, abandon past wrong practices, truly assume the responsibilities and obligations consistent with its status as a nuclear power, and jointly maintain world peace and regional stability. (author: Luo Xi Academy of Military Sciences) (outlook new era)