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Science and Technology Directorate

A fireside chat with David Alexander, senior science advisor at DHS S&T, Julie Brewer, deputy under secretary for DHS S&T, and Samuel Howerton, chief scientist at DHS S&T, on Sept. 22, 2026 at the Gallup Building in Washington, D.C.

DHS plans ‘large investments’ in biosurveillance as it ramps up capabilities

The agency’s Science and Technology Directorate wants to add testing and evaluation sites, forge partnerships with industry and create internal roles to lead the work.
Samuel Howerton, chief scientist within DHS’s Science and Technology Directorate, and Andrew McClure, director of DOE’s Office of Cybersecurity, Energy Security and Emergency Response, during a fireside conversation at the 17th Annual Billington CyberSecurity Summit in Washington, D.C. on Thursday, Sept. 10, 2026. (Courtesy of Billington CyberSecurity Summit)

DHS finds a technology partner in the Energy Department

The law enforcement agency joined the Genesis Mission and partnered with DOE’s national labs for expertise on other projects.
CISA Chief of Staff Kiersten Todt spoke during the Fortune CEO Initiative in Washington on Nov. 16, 2021. (Photo by Rebecca Greenfield for Fortune Magazine/Flickr/Creative Commons)

CISA Chief of Staff Kiersten Todt to step down

After nearly two years at the Cybersecurity and Infrastructure Security Agency, Todt will leave for a job in the private sector.
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