Laser Gun to Detect Bombs and Chemical Weapons from 100 Feet Away

In Brief
US-based Intelligence Advanced Research Projects Activity (IARPA) agency is sponsoring a program to build portable laser sensors that could detect explosives, narcotics and other dangerous chemical weapons from 100 feet away.

Dubbed SILMARILS (Standoff Illuminator for Measuring Absorbance and Reflectance Infrared Light Signatures), the program aims to identify biological agents as