An official website of the United States Government 
Here's how you know

Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( lock ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Photos

Snapshots of what’s happening in the Defense Department.

As a watch analyst with the Department of Homeland Security in Arlington, Virginia, Stephen Caldwell monitors potential national threats that could pose harm to critical infrastructures.

Experiences enhance Soldier’s situational awareness

Army Sgt. Stephen Caldwell, an infantryman with the South Carolina Army National Guard and a watch analyst for the Department of Homeland Security, poses for a photo in Arlington, Va., April 17, 2018. As a DHS watch analyst Caldwell monitors potential national threats that could pose harm to critical infrastructures. “It’s amazing how everything is pulled together to provide an [operational] picture,” he said. Air National Guard photo by Tech. Sgt. Erich B. Smith

  • Download: Full Size (2.69 MB)
  • Credit: Tech. Sgt. Erich B. Smith VIRIN: 180417-Z-NB148-004.JPG
Photo Gallery