New technology makes it easier to identify suspects in surveillance photos and video . The Boston bombing suspects were identified on security-camera footage . Comment: Facial-recognition software can detect age , gender and even moods .
New technology makes it easier to identify suspects in surveillance photos and video . The Boston bombing suspects were identified on security-camera footage . Cities such as New York and London now have thousands of cameras on the streets . Facial-recognition software can detect age , gender and even moods .