> Most of the DNA in the human genome is junk

This topic is still very controversial and I don't think the article should be citing it in this context.

It was only a few months ago that the ENCODE project released its first results claiming that 80% of the genome is "functional", and many scientists have noted that their definition of "functional" is much too broad. It includes any piece of DNA that becomes bound to protein at some time, while it is known that many proteins bind nonspecifically.