Ivan DeLoatch, FGDC Executive Director and David J. Alexander, Director, Geospatial Management Office, DHS and also an FGDC Executive Member authored a guest blog post on the Information Sharing Environment (ISE) website introducing the Geospatial Interoperability Reference Architecture (GIRA).
The blog post is available online at https://www.ise.gov/blog/ivan-b-deloatch-and-david-alexander/introduction-geospatial-interoperability-reference.