the daily brief

• Trump announced a security deal with Denmark granting the US "permanent" control over Greenland's defense and other needs, with plans to "immediately" build a larger military presence on the island at no cost to Washington — npr
• Polish PM Donald Tusk warned lawmakers that Russia is planning drone and missile strikes on eastern NATO states it will present as "accidental," intending to test whether Article 5 triggers a collective response — npr
• Russian drones destroyed the Amstor shopping mall in Zaporizhzhia, sparking a fire across more than 10,000 square metres and injuring one person; nearby children survived by sheltering in a skatepark's concrete bowls — africanews
• Houthi rebels fired a ballistic missile at Riyadh for the first time since fighting resumed; Saudi air defenses intercepted it, though a fire broke out at an Aramco-branded fuel depot near the capital's international airport — npr
• The State Department issued a comprehensive security alert across Middle East missions warning the conflict "has the potential to escalate rapidly," as Trump cut short a Camp David trip and returned early to the White House — the hill
• Iran's fire pause reached a ninth day with no new attack on any host state, surviving the publication of UN and Amnesty war-crimes findings and the opening of UN General Assembly week; the Pentagon lists 18 US military deaths since the Iran war began — globalsecurity.org
• Iran's response to sustained diplomatic and legal pressure has been the continued expulsion of Swedish diplomats rather than any kinetic escalation — globalsecurity.org
• Turkish police detained 21 people in İzmir over humanitarian aid allegedly linked to the Gülen movement — turkish minute
• Turkey's justice minister said courts jailed 20 people pending trial in two capital-market manipulation probes and ordered 246 social-media accounts blocked, after a $18.3 billion liquidation of funds run by seven portfolio managers — turkish minute

• Anthropic has chosen Nasdaq for a planned October IPO targeting a valuation as high as $2 trillion, after filing a confidential S-1 in June; its annualized revenue run rate has surpassed $65 billion, up more than 7x from end-2025, and the offering could raise up to $100 billion — thenextweb
• OpenAI, having pushed its own listing to 2027 or later, is reportedly in early talks to raise new funding at a $1.2 trillion valuation — sophic capital
• OpenAI announced DevDay 2026 for September 29 in San Francisco and opened a managed Agents API in public beta, handling orchestration and long-running sessions with sandbox compute from partners including Vercel and DigitalOcean — openai
• OpenAI will retire GPT-5.5 from ChatGPT, ChatGPT Work and Codex on October 14, 2026 across all plans — releasebot
• Anthropic's Project Glasswing research using an unreleased "Claude Mythos2 Preview" model found thousands of high-severity software vulnerabilities across every major operating system and browser; the company is committing up to $100 million in usage credits plus $4 million in direct donations to open-source security groups — anthropic

• Markets closed a volatile week mixed following the Fed's first rate hike since 2023: the Nasdaq gained 0.7% on the week while the S&P 500 slipped 0.1% and the Dow fell 1.7% — sophic capital
• China's smart-glasses sales doubled in the first eight months of 2026 — sophic capital
• SpaceX won another $950 million NASA contract covering three more crewed flights to the International Space Station — sophic capital
• Trump said he will form an "AI Force" modeled on the Space Force and soon name an AI czar, while dismissing AI safety-risk warnings as a "hoax" — washington post

• Neuroscientists reported a major advance in modeling the human brain in mice, offering researchers a new way to study conditions such as cerebral palsy — sciencedaily
• Scientists unveiled a solar-powered desalination system that turns seawater into fresh water while removing nearly all the leftover salt as a solid rather than discharging it as harmful brine — sciencedaily
• Researchers discovered a new frog species in the flooded forests of the western Amazon, distinguished from nearly identical relatives by its DNA and its distinct call — sciencedaily
• The Asian Games opened in Aichi-Nagoya, Japan, running through October 4, alongside the World Athletics Road Running Championships in Copenhagen — reachtv

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