By Ben Flanagan
James Murdoch's appearance at the Abu Dhabi Media Summit comes at a decisive time for News Corp, the media empire controlled by his father.
Rupert Murdoch turned 80 last Friday, but neither he nor News Corp show any sign of slowing down. The company has myriad growing interests in press, TV and film across the globe.
While no retirement date is in sight for Murdoch Sr, his son James, 38, is being widely touted as the heir apparent of this media juggernaut.
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