Anybody who claims to know what the relative potentials of embryonic vs. adult stem cells are is either 1) too stupid to realize how stupid they are, or 2) lying. The very top researchers in this field don't claim to know that, and yet this journalist who has no professional credentials whatsoever in stem cell biology or any related field, is claiming that HE knows. What a load of crap. His credibility is several notches below those sorry excuses for scientists who claim that they know that "global warming" is a dire emergency and entirely caused by human activity.