CNN CNN Newsroom June 28, 2013 18:40:00
Thus far. >> right. it's the only piece of truly objective evidence. >> how do you mean? >> we know that eyewitnesses and ear witnesses, as much as we think they're very reliable, we know that they're not. there's problems. and i mean this across the board. we perceive, recall, and report events, we're not like computers. we know, for example, that there have been over 1,000 exonerations in other cases because of dna and other factors. the biggest contributing factor in false -- in false convictions is faulty eyewitness identification. and here we have all these witnesses who have perceived th...