By Pam Benson
The people who usually analyze imagery from U.S. spy satellites are helping emergency workers respond to the devastation from this week's deadly twister in Oklahoma.
Shortly after the tornado struck, the Federal Emergency Management Agency (FEMA) asked the National Geospatial-Intelligence Agency to provide expertise to assess video, pictures and satellite imagery of the destruction.
And for the first time, NGA analysts are using an unclassified website to share that information with first responders.
Their assessments aim to help rescue workers conduct search and rescue operations and begin recovery efforts.