Since Worboys's arrest, the Met has overhauled the way officers investigate sexual assault allegations by creating a central intelligence unit to catch serial offenders.

BBC: Police disciplined over taxi sex attacker Worboys

It is possible to predict potentially private traits such as a person's sexual orientation, political leanings, religion, intelligence, emotional stability and even if they abuse drugs or alcohol, just by analyzing their Facebook likes, according to a new study out of the University of Cambridge.

CNN: Heather Kelly,