Eyewitness Identification (part II) -- 60 Minutes

(CBS) Now that DNA has exonerated more than 230 men in mostly sex crimes and murder cases, criminologists have been able to go back and study what went wrong in those investigations.

What they've honed in on is faulty eyewitness testimony: over 75 percent of these innocent men were convicted in part because an eyewitness fingered the wrong person.

At the heart of the problem is the fragility of memory. As one researcher told 60 Minutes, we now know that memory is not like a videotape recorder - you don't just record an event and play it back.