Should parents talk to children about carnage?

With saturation media coverage of the Paris terrorist attacks, parents are asking themselves if they should talk to their children about the killings - and how they should go about it.

Most child psychology experts believe that children should be told, but warn that parents have to be careful not to allow them to be overwhelmed by fear or horror at what happened.

Above all, they must not let their own emotions or anguish intrude.