Axios

Leading artificial intelligence companies are investigating tens of thousands of security incidents, according to an Axios report. The scale of the probes highlights growing cybersecurity pressures on firms building and deploying AI systems, as attackers and misuse attempts rise alongside the technology's rapid adoption across industry and government.

Axios published a weekly rundown of energy and climate deals announced during the week of September 21. The roundup collects funding rounds, acquisitions, and investment activity across the clean energy and climate technology sectors into a single briefing. Such weekly digests are used by investors, founders, and policy watchers to track where climate capital is flowing.

Axios has published a breakdown of which US senators are spending the most taxpayer money on flights. The report details the travel expenses recorded by individual senators, drawing attention to how federal lawmakers use official travel budgets. The figures are prompting discussion about government spending and whether the amounts are justified, particularly for senators from states far from Washington.