In mid-October, the National Protection and Programs Directorate, Office of Infrastructure Protection, Department of Homeland Security (DHS) released a fact sheet to help the geospatial community gain better understanding of the various homeland security data products and services that DHS sponsors. All of the programs mentioned in the fact sheet have a strong geospatial component. To view and/or download the fact sheet, go here.
Comment: This is an excellent basic reference document for those who wish to understand the range of DHS efforts along these lines. A permanent link to the document will also be posted in the right-hand side bar.