At present, the Russian-Ukrainian conflict has entered a stalemate stage, but at the same time that the two sides on the battlefield are not giving in to each other, the international public opinion field has set off a new round of offensive and defensive wars. At a news conference on March 9, Russian Foreign Ministry spokeswoman Zakharova asked the Biden administration to respond formally and clearly to U.S. Deputy Secretary of State Newland's remarks. It is reported that when Nuland was asked by the notorious anti-China congressman Rubio about the "Ukrainian biological research facilities" during the congressional hearing on the 8th, Nuland first admitted in the face of live television that Ukraine does have biological research facilities, and the Biden administration is cooperating with Ukraine to ensure that the research materials will not fall into the hands of the Russian army.
When Rubio asked if there would be a biological weapons attack in Ukraine, Nuland did not hesitate to say that if there was a biological weapons attack, the initiator must be Russia. Since it was the current senior foreign official of the United States who made this remark, it attracted great attention from international public opinion in a short period of time.

In fact, on the same day that Nuland recognized the existence of biological laboratories, Russian Foreign Ministry spokesperson Zakharova issued a public statement, saying that documents seized by the Russian military from ukrainian biological laboratory employees showed that at the same time that the Russian army officially launched a special military operation on February 24, all laboratories in Ukraine were urgently destroying pathogens of highly deadly diseases such as cholera and anthrax. So when Zakharova held a press conference on the 9th, she directly called out to the Biden administration that "there is no chance to remain silent, Russia needs details, and the whole world is waiting." China's Foreign Ministry also responded to the matter on March 8, urging the United States to provide full clarification on its biomilitary activities at home and abroad and to accept multilateral verification.
However, the more explosive news is that the Russian Defense Ministry said in a statement issued on the 10th that according to the confidential documents they seized, these biological laboratories established and funded by the United States are testing bat coronavirus samples in Ukraine.
Because Russia's successive insider information in just three days is so dense that the White House cannot pretend to be deaf and dumb. White House press secretary Psaki issued 8 consecutive tweets on the 9th, denying in an almost hysterical manner the allegation that "the United States has built a biological laboratory in Ukraine and carried out experiments", not only throwing all the black pot directly to Russia, but also accusing China of "cooperating" with Russia to publicize these "fake news". It also stresses once again that the United States is in full compliance with all its obligations under the Chemical Weapons Convention and the Biological Weapons Convention.
Although Psaki is very conscientious as the White House press secretary, her "extreme operation" cannot change the basic fact that the United States has been single-handedly obstructing the establishment of the Biological Weapons Convention verification mechanism for the past 20 years and rejecting the verification of its biological facilities at home and abroad by all multilateral institutions.
According to the information previously released by the Chinese Ministry of Foreign Affairs, the United States controls 336 biological laboratories in 30 countries around the world, each of which was established in the name of "reducing biosecurity risks and strengthening global public health", and the Fort Detrick base established in the United States has the largest biological laboratory in the United States.
For a long time, the United States has denied all allegations of engaging in biological weapons development, that is, it does not want its moral image to be damaged, but the United States is very keen to plant the booty of what it has done to its opponents, such as Russia and China, and even suppress China and Russia with real "fake news". This time Russia has obtained first-hand evidence, if the United States is obstinate and continues to avoid the concerns of the international community, Russia will expose more and more fierce materials in the future, and the United States will eventually become a street rat and be spurned by the world.