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”:
![](https://fas.org/wp-content/uploads/2023/04/hazard-237x300.jpg)
Or a soldier may need to signal “I do not understand,” as follows:
![](https://fas.org/wp-content/uploads/2023/04/do-not-250x300.jpg)
See Visual Signals for Armor Fighting Vehicles (Combined Arms), GTA 17-02-019, US Army, February 2018.
Without a robust education system that prepares our youth for future careers in key sectors, our national security and competitiveness are at risk.
The Federation of American Scientists applauds the United States for declassifying the number of nuclear warheads in its military stockpile and the number of retired and dismantled warheads.
The Federation of American Scientists (FAS) takes its role as a beacon and voice of the scientific community very seriously. We strive for a world that is both more inclusive and informed by science, and are committed to the idea that the path to that world starts by modeling it within our organization.
To understand the range of governmental priorities for the bioeconomy, we spoke with key agencies represented on the National Bioeconomy Board to collect their perspectives.