"DNA could not last half a million years, but paleontologists describe DNA in samples designated millions of years old. Ditching the millions-of-years dogma would resolve this dilemma. The clearly detected dinosaur proteins and what looks like dinosaur DNA make sense if the earth layers that contain them were deposited by Noah’s Flood only thousands of years ago."
http://ow.ly/UqBns
Makes for a compelling argument does it not?
No.
I think it's more they thought it was impossible for DNA to survive millions of years ........until they found some and they had it wrong...... It could.