Reassuring children about the world's end

In "Reassuring children about the world's end" (Caroline McClatchey,
BBC News Magazine,11:17 GMT, Friday, 12 September 2008) the worry which talk of black holes generated by the Large Hadron Collider would cause for children was discussed. An educational psychologist was quoted. It happens my brother is an educational psychologist and prepared advice for teachers on what to do in such situations. This may also be of use to parents: "In stressful times what can we as teachers do?".