Gene editing technology, especially the CRISPR-Cas9 system, has made significant progress in the fields of biology and medicine. It allows scientists to precisely modify the genome of an organism, thereby changing its traits or functions. However, the use of gene editing technology to create organisms with specific deadly characteristics involves a series of complex ethical, legal, and safety issues. ### 1. **Technical feasibility** From a technical point of view, gene editing can indeed be used to modify the genome of an organism to have specific traits, including potentially fatal characteristics. For example, scientists can edit genes to enhance the toxicity of a certain pathogen, or create organisms that are extremely sensitive to specific environmental conditions. ### 2. **Ethical and ethical issues** The creation of organisms with deadly characteristics involves serious ethical issues. This behavior may be used for biological terrorism, or lead to unforeseen ecological disasters. Scientists and ethicists generally believe that gene editing technology should be used to promote human well-being and environmental protection, not to create harm. ### 3. **Law and regulation** Many countries and regions have established strict legal and regulatory frameworks that restrict or prohibit the use of gene editing technologies for research that may harm humans or the environment. The international community is also actively exploring how to regulate the application of gene editing technology on a global scale to prevent its abuse. ### 4. **Safety and risk assessment** Even if it is technically feasible, the creation of organisms with deadly characteristics faces huge safety risks. Once this organism is released into the environment, it may cause irreversible damage to the ecosystem and human health. Therefore, any research involving gene editing must undergo rigorous safety assessment and risk management. ### 5. **Alternative** Instead of using gene editing technology to create deadly organisms, scientists are more inclined to use this technology to solve global problems, such as the development of disease-resistant crops, the treatment of genetic diseases, and the protection of endangered species. These applications not only meet ethical requirements, but also can bring practical benefits to human society. ### Conclusion Although gene editing technology can theoretically be used to create organisms with specific deadly characteristics, this practice faces huge ethical, legal, and safety challenges. Scientists, policymakers, and the public should work together to ensure that gene editing technologies are used responsibly for the benefit of mankind and the planet, not to cause harm.