Motivated by the current (2011) political climate in Wisconsin it seems reasonable to devote some time and effort to comment on issues and some of the hyperbole. So we in the public should do what we can to help focus "journalists" on delineating real facts versus spin. If you accept the spin you do not understand the policy implications.
MIDSUMMER NIGHTS' SCIENCE: WHO WE ARE AND HOW WE GOT HERE: ANCIENT DNA AND THE NEW SCIENCE OF THE HUMAN PAST: Broad Institute
In 2010, the first genome-wide data from ancient humans was published. Since that time, the number of ancient genomes available has increased by three orders of magnitude, and the amount of data continues to rise at an extraordinary rate. These new data make it possible, for the first time, to understand how ancient human populations are related to each other. Studies have demonstrated surprise after surprise, including the existence of a previously unknown human population called the Denisovans and interbreeding between Neanderthals and modern humans.
In this 2017 Midsummer Nights' Science talk, David Reich described his laboratory’s work in the area of ancient DNA and the prospects for further discoveries about the past from this burgeoning field.