American talk show host Dr Phil McGraw has called for new measures to prevent bullying in the aftermath of the suicide of Phoebe Prince.
Phoebe (15) originally from Co Clare, took her own life just months after her family moved to America, because of bullying in school.
Nine teenagers were brought before the courts in relation to the harassment of Phoebe in a case that has become of symbol of school bullying in the US.
Psychologist and TV host Dr Phil told a hearing on cyber-bullying in Washington that teen bullying is "so out of control".
"These kids are getting isolated in their homes. They're getting isolated on these computers and they're getting their reputations ruined" he said.
"These keyboard bullies are anonymous which means they're even meaner and more aggressive because they can hide behind anonymity."