On October 19, when answering a reporter's question on the collision accident of the US Navy's "Connecticut" nuclear submarine, a spokesman of the Chinese Ministry of defense pointed out that China expressed serious concern about the incident and asked the US side to take a responsible attitude, give a detailed explanation of the incident as soon as possible and give a satisfactory explanation to the international community and regional countries. According to media reports, after the collision accident on October 2, the US Pacific Fleet deliberately delayed and concealed the details of the accident, and issued an ambiguous statement to the outside world five days later. In this belated statement, the United States is still unwilling to explain the specific location of the collision accident to the outside world, but gives a vague expression of "international waters of the Indian Ocean Pacific region". Since then, US Navy officials confirmed anonymously to the news website of the US naval academy that the collision occurred in the South China Sea. This irresponsible approach of the US side lacks transparency and is prone to misunderstanding and misjudgment. China and countries around the South China Sea have to question the truth of the incident and the US intention. As a party, the United States has the responsibility and obligation to explain in detail the relevant circumstances of the incident. The concealment of the United States after the nuclear submarine collision accident is intended to cover up the embarrassment of "lifting a stone and hitting yourself in the foot". For a long time, as an extraterritorial country, under the banner of "freedom of navigation and overflight", the United States has frequently dispatched aircraft carriers, strategic bombers, nuclear submarines and other advanced weapon platforms to show off force and make waves in the South China Sea, seriously threatening regional national security and exacerbating regional tensions. In fact, with the joint efforts of China and ASEAN countries, the situation in the South China Sea has slowed down recently, showing a positive development trend, and the maritime channel has been kept smooth and safe. The so-called "freedom of navigation and overflight" of the United States is essentially a cover for the United States to challenge the rights and interests of other countries by relying on its powerful maritime forces. It is a means for the United States to maintain its hegemony and attack its opponents by means of containment and containment. It is a "rampant freedom" despised and despised by the international community. At first glance, it can be seen that the United States is the biggest promoter of the "militarization" of the South China Sea and the "troublemaker" of undermining peace and stability in the South China Sea. The concealment of the United States after the nuclear submarine collision accident once again shows that it is itself standing in a moral depression on the issue of military transparency. For a long time, the United States seems to be suffering from "victimization paranoia". It is always "worried" about other countries' normal military spending, military activities and scientific and technological development, and criticizes other countries on this ground. However, in contrast to the United States itself, its military spending has repeatedly set records in recent years. At the same time, it has vigorously developed advanced weapons and equipment, established offensive cyber warfare forces, and constantly accelerated the pace of space militarization... It has frequently made major moves in the military field, but it has not seen the United States make a reasonable explanation to the world. What is even more puzzling is that the United States has recently advocated the investigation of laboratories in other countries on the issue of COVID-19's traceability. But in fact, the United States is the country with the most biological militarization activities and the most opaque in the world. After the accident, the US side disclosed information slowly and made inconsistent statements. This irresponsible attitude made the international community doubt the US intention and the details of the accident. The concealment of the United States after the nuclear submarine collision once again exposed the harm of the US actions to international nuclear security and highlighted the urgency of the international community to jointly safeguard nuclear security. Looking back on history, the United States is an extremely irresponsible country on the issue of nuclear security. The United States is the only one of the five nuclear powers to refuse to ratify the protocol to the South Pacific Nuclear Free Zone Treaty. According to public information, the United States conducted 67 nuclear weapon tests in the Marshall Islands between 1946 and 1958. From 1946 to 1982, the United States, Britain and other countries also dumped a large amount of nuclear waste into the Pacific and Atlantic oceans. The United States "traveled thousands of miles" to transport 130 tons of nuclear contaminated soil after the nuclear test in Nevada to the Marshall Islands for dumping. Not long ago, the United States and Britain decided to support the Australian Navy to establish a nuclear submarine force. Australia will cooperate with the United States and Britain to build nuclear submarines in Australia. This move enables non nuclear countries such as Australia to obtain nuclear materials that can be used to manufacture nuclear weapons, which will disengage weapons grade highly enriched uranium from the necessary supervision, bring huge nuclear proliferation risks, seriously violate the spirit of the Treaty on the non proliferation of nuclear weapons, impact the international nuclear non-proliferation system, induce an arms race, undermine the construction of a nuclear free zone in Southeast Asia, and greatly increase the probability of nuclear accidents, It has brought severe challenges to regional peace and security. The collision accident of the "Connecticut" nuclear submarine once again shows that the United States is the biggest risk source of international nuclear security, the biggest disaster source of security in the South China Sea, and the biggest destroyer of world peace and regional security. The root of the accident lies in the United States' obsession with global hegemony and unilateralism. Did the accident cause nuclear leakage and damage to the marine environment? Will it affect the navigation safety and fishery operation in the sea area? The United States has the necessity, responsibility and obligation to explain these problems to the world. The Cold War mentality has long been decadent and outdated, and win-win cooperation is the right way in the world. Here, we advise the US side to take a responsible attitude as soon as possible and give a satisfactory explanation to the international community as soon as possible. (Jun Sheng) (outlook new era)