JUST READ IT Answers: The best and worst of facial scans, from tracking shoppers to locating crooks [February 28, 2018]

(iii) identify their age

(iv) identify how long they spend at each counter.

3. B

4. have more power/advantage/control than someone else; become more powerful than someone else

5. (i) optimise

(ii) innovative

(iii) booming 

6. (i) self-driving cars

(ii) finding a cure for cancer

7. their efficiency

8. (i) identify criminals

(ii) verify customers in banks

(iii) reunite lost children

(iv) augment security x-rays

9. It goes from positive to negative/ a warning

10. (i) loss of jobs

(ii) hackers could use the data/hackers could get into bank accounts