The Department of Homeland Security’s Science and Technology Directorate delivered critical border security tools and counter-terrorism capabilities throughout 2025, positioning the agency to tackle upcoming security challenges, including the nation’s 250th anniversary and FIFA World Cup events.
The directorate’s annual review, released on January 12, highlights how technological innovation strengthened national security across multiple fronts.
“Last year ushered in a renewed emphasis on securing the nation’s borders, and S&T demonstrated its ability to rise to the challenge,” said Julie Brewer, Deputy Under Secretary for Science and Technology.
The directorate developed next-generation analytics platforms, enhancing Customs and Border Protection’s situational awareness along air and sea borders.
S&T also evaluated counter-drone technologies for the Secret Service, Federal Protective Service, and local law enforcement agencies responding to unauthorized unmanned aircraft. These capabilities address growing concerns about nefarious drone usage near critical infrastructure and protected sites.
The fight against fentanyl trafficking saw significant technological advances. S&T created an end-to-end supply chain model and delivered the Trace Vapor Generator system, improving fentanyl detection at crime scenes and border crossings.
AI-powered analytics accelerated criminal investigations, while specialized software tools helped rescue hundreds of human trafficking victims, most of them children. The technology also dismantled over 35 criminal networks.
Critical infrastructure protection remained a priority throughout 2025. Working with the Cybersecurity and Infrastructure Security Agency, S&T evaluated cybersecurity vulnerabilities in freight rail networks and proposed mitigation strategies.
The directorate published best practices for protecting Positioning, Navigation, and Timing systems from GPS jamming and spoofing. These guidelines help critical infrastructure operators safeguard networks that society depends on for accurate location and timing data.
Looking ahead, S&T faces heightened security demands in 2026. The nation’s 250th anniversary celebrations and FIFA World Cup matches across the country present attractive targets for potential disruption.
“Each occasion will be a target for those who wish to disrupt them, and S&T is committed to supporting DHS with focused RDT&E to ensure safety and security during these historic moments,” Brewer stated.
The directorate’s 2025 accomplishments reflect its expanding role in homeland security operations. From border protection to cybersecurity, S&T’s technological solutions directly support field operations and policy decisions.
As international events approach and security threats evolve, the directorate’s innovation pipeline becomes increasingly vital. The 2026 agenda promises continued focus on mission-critical technologies protecting national security interests.
