Japanese Prime Minister Shinzo Abe (R) speaks during a bilateral meeting with British Prime Minister David Cameron on the sidelines of the G8 summit on June 17, 2013.
Japanese Prime Minister Shinzo Abe (R) speaks during a bilateral meeting with British Prime Minister David Cameron on the sidelines of the G8 summit on June 17, 2013. - 
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Leaders of some the world's richest countries meet in Northern Ireland today for the annual G8 summit. High on the agenda will be the issue of tax avoidance and a U.S.-EU free trade deal.

Negotiating a vast new economic trade zone -- sounds easy, no? The BBC's diplomatic correspondent Jonathan Marcus says just getting to the negotiating table was a struggle.

"This is hugely complex, we've seen disagreements over the French entertainment and film industry and so on. There are a whole range of key economic sectors where there are problems. It's not going to be easy."

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