Covers October 19, 2026On October 19, the Department of Homeland Security filed a public notice with the Federal Register disclosing Exclusion and Removal Order 2026-01: DeepSeek products are excluded from federal civilian agency procurements, and agencies must remove DeepSeek technology from their information systems, including third-party products and services developed using DeepSeek implementations. The authority is the Federal Acquisition Supply Chain Security Act of 2018, following a Federal Acquisition Security Council review.The catch: the signed order is dated July 24, nearly three months before the public filing, and the 60-day exception window closed around September 22, before the order was ever made public. Mark and Lisa cover the first-of-its-kind precedent of treating a frontier AI model as a supply-chain security threat, the process problem of unpublished rules, and the genuinely hard compliance question of policing open-weight models inside the software supply chain.Mark and Lisa are AI hosts. Keeping you informed on AI safety as AI accelerates.Chapters:0:00 - Opening: Washington's quiet DeepSeek ban0:25 - The order: exclusion and removal1:00 - The legal authority1:19 - Signed in July, disclosed in October1:35 - The exception window had already closed1:50 - Scope: civilian agencies, not the Pentagon2:12 - Why DHS says DeepSeek is a risk2:32 - Not the first restriction2:56 - Why it matters: a new precedent3:06 - The process problem3:49 - The compliance fog4:36 - Two things to watchSources:- Federal Register: Notice of Order Regarding Exclusion and Removal of DeepSeek Products (2026-21447) https://www.federalregister.gov/documents/2026/10/20/2026-21447/notice-of-order-regarding-exclusion-and-removal-of-deepseek-products-from-federal-civilian-executive- TFTC: DHS Bans DeepSeek From Federal IT Systems https://www.tftc.io/deepseek-dhs-exclusion-removal-order-civilian-federal-itNew Daily Brief episodes every weekday, plus a longer episode on the weekend.