Walsh has credibility as an expert too. NAMEC is listed (in many places, like our own local Amber Plan literature)as an LE resource and information clearing house. They are recommended by the FBI to local LE enduring an abduction investigation. The fact is, they can come up with money, manpower, equipment and expertise in a faster time frame than most LE localities have or can afford. AND they do it for free.
Far outshines your own credibility, by far, FDA. You have far more in common with the sensationlist Network newsreaders (Rather, et al) you compared him with, "just a newsreader" he's not.