As I hope I indicated somewhere in my latest survey revision, I can't always find everything germane to that database without help from readers. Thus, I'm not surprised to learn that I missed the "Certification in Homeland Security" in my searches across the Web (they don't call it "world wide" for nothing, you know!), and I'm grateful that you shared this item with me so that it can be included in future coverage.
That said, let me respond to your questions directly:Click here to read Ed's complete answer.
This was first published in November 2003