Imagine that a "documentary" film-maker—whose most notable former credit is a film advancing the notion that extra-terrestrials did indeed visit Area 51—brought forth a new work suggesting that key elements of the Prophet Mohammed's story had been fabricated. What are the odds ABC would devote a segment of Good Morning America to a respectful interview of the filmmaker and discussion of his work? But that's exactly what ABC did regarding someone who has produced a documentary ["Bloodline"] calling into question key aspects of the story of Jesus Christ. Here's how GMA weekend co-anchor Bill Weir introduced the segment this morning:...