Babies are liars?

From the UK:

Whether lying about raiding the biscuit tin or denying they broke a toy, all children try to mislead their parents at some time. Yet it now appears that babies learn to deceive from a far younger age than anyone previously suspected.

Behavioural experts have found that infants begin to lie from as young as six months. Simple fibs help to train them for more complex deceptions in later life. (Such as Democratic politics? - Ed.)

I believe the baby used in the study was named William Jefferson something...