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Israel has announced the discovery of a massive natural gas field off its northern coast, worth tens of billions of dollars in potential revenue.  

The company behind the exploration of the "Leviathan 1" field says it is the world's biggest gas discovery in decades. 

It could free Israel from relying on foreign energy sources and could also affect the politics of the region.  

Anand Naidoo reports.

Source: Al Jazeera