Doctored images can affect what we eat, how we vote and even our childhood recollections. The question scientists are asking is why there’s nothing we can do to stop it.

The year was a memorable one – looking back at the unforgettable images over the past 12 months, you might think of apocalyptic-looking clouds over Manhattan during Hurricane Sandy, or Mitt Romney’s children mistakenly standing in a line spelling out the word ‘MONEY