Not exactly a massively current issue, but it came up in conversation today at uni so THERE

What do people think?

So the police liase with the 'train people' and get shit loads of info on where we go, how often we go there and at what times. They obviously then compile it together and have some idea on where we might be at any given time

Not too much of a problem for most. But for people that regularly use an Oyster card, does it bother you in any way?