Soldiers need to be able to communicate on a noisy, dangerous battlefield even when conventional means of communication are unavailable.
To help meet that need, the US Army has just updated its compilation of hand and flag signals.
One configuration of flags signifies “Chemical, biological, radiological, and nuclear hazard present”:
Or a soldier may need to signal “I do not understand,” as follows:
See Visual Signals for Armor Fighting Vehicles (Combined Arms), GTA 17-02-019, US Army, February 2018.
A deeper understanding of methane could help scientists better address these impacts – including potentially through methane removal.
While it is reasonable for governments to keep the most sensitive aspects of nuclear policies secret, the rights of their citizens to have access to general knowledge about these issues is equally valid so they may know about the consequences to themselves and their country.
Advancing the U.S. leadership in emerging biotechnology is a strategic imperative, one that will shape regional development within the U.S., economic competitiveness abroad, and our national security for decades to come.
Inconsistent metrics and opaque reporting make future AI power‑demand estimates extremely uncertain, leaving grid planners in the dark and climate targets on the line