[4/26 05:00] Bezos Project Prometheus London King's Cross expansion / Google Cloud AI catch-up strategy

AI News Flash for April 26, 2026 at 05:00 UTC. Topics: 1. Bezos Project Prometheus London King's Cross expansion https://www.ft.com/content/c0e16cf8-b44b-435f-9b07-83d8f011693a 2. Google Cloud AI catch-up strategy https://www.ft.com/content/2429f0f0-b685-4747-b425-bf8001a2e94c 3. Casey's General Stores AI voice ordering 90% expansion https://simplywall.st/stocks/us/consumer-retailing/nasdaq-casy/caseys-general-stores/news/why-caseys-general-stores-casy-is-up-59-after-expanding-ai-v 4. PageIndex vectorless RAG reasoning-based retrieval https://www.marktechpost.com/2026/04/25/rag-without-vectors-how-pageindex-retrieves-by-reasoning/ 5. US Smart Wall AI border surveillance https://english.elpais.com/usa/2026-04-26/reinforced-walls-and-detection-technology-the-smart-wall-the-us-is-building-on-the-border.html