I wonder how to weigh analyses between an unnamed "forensic scientist" quoted on Scrappleface, and those who looked at the info before.

At that point, Dr. Robert M. Nelson, a 30-year Jet Propulsion Laboratory veteran who works on photo imaging for NASA’s various space probes and currently is part of a photo enhancement team for the Cassini Saturn space probe, entered the picture. Nelson recounts that after seeing the Salon story on the bulge, professional curiosity prompted him to apply his skills at photo enhancement to a digital image he took from a videotape of the first debate. He says that when he saw the results of his efforts, which clearly revealed a significant T-shaped object in the middle of Bush’s back and a wire running up and over his shoulder, he realized it was an important story.

So is Nelson a kook?

and

Among those called in the course of their reporting, in addition to Nelson, who says he received numerous calls and emails from the team, were Cornell physicist Kurt Gottfried, who was asked to vouch for Nelson’s professional credentials; Bush/Cheney campaign chair Ken Mehlman (information about this call was provided by a journalist at the Times); and Jim Atkinson, an owner of a spyware and debugging company in Gloucester, Mass., called Granite Island Group.

"The Times reporters called me a number of times on this story," confirms Atkinson. "I was able to identify the object Nelson highlighted definitively as a magnetic cueing device that uses a wire yoke around the neck to communicate with a hidden earpiece—the kind of thing that is used routinely now by music performers, actors, reporters—and by politicians."

Anyone else got any other sources of analysis?