tony frudakis made scientific history.s the first time this biogeographic testing was ever used in a criminal case. the technology now has a 99% accuracy rate, and new tests can even predict eye color with 92% accuracy. >> if it can tell you the race, it might be able to tell you exactly who you're looking for. but if it tells you the name and the address and phone number, it's time for me to leave this place. dna's too good then. >> this new test also shows the limitations of behavioral profiles and the fallibility of so-called eyewitnesses. >> i don't think it's too far out there to say that in the future there probably will be much less crime than there is today because people are going to realize that when they commit that rape or they commit that murder, they might as well take their driver's license out of their wallet and toss it on the ground. because they're going to get that information anyway. >> if people are going to commit violent crimes, they need to be accountable, and we need to take whatever means necessa