World leaders have promised to tighten border controls, step up intelligence sharing and crack down on "terrorist" financing

World leaders have promised to tighten border controls, step up intelligence sharing and crack down on "terrorist" financing at a summit in Turkey, but there was little sign of a dramatic shift in strategy against the Islamic State of Iraq and the Levant (ISIL) group. The G20 summit in Turkey's coastal province of Antalya has been…
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