This bill amends the Public Health Service Act to enhance national health security by requiring the inclusion of two new strategies within the National Health Security Strategy. It mandates the development of a biological attribution strategy to improve federal coordination in determining the source, cause, or origin of biological hazards and pathogens of pandemic potential. This strategy will detail each federal agency's attribution duties, the process for making determinations, and plans for developing new technologies such as diagnostic and sequencing capabilities. Additionally, the bill requires an early warning strategy and implementation plan for biological, chemical, and radiological threats. This plan aims to establish a robust early warning function utilizing new technologies for early identification of threats, understanding their prevalence, and adapting to emerging dangers like synthetic drugs. It emphasizes ongoing detection from diverse sources such as wastewater and transportation hubs, ensuring rapid deployment of technologies during public health events, and coordinating efforts across various stakeholders to avoid duplication.