Seeing slow progress, leaders face disparate nuclear threats - WAOW - Newsline 9, Wausau News, Weather, Sports

Seeing slow progress, leaders face disparate nuclear threats

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WASHINGTON (AP) -- Dozens of world leaders assembling for a nuclear security summit will confront a disparate array of modern-day threats, ranging from government actors like North Korea to murkier groups like the Islamic State.

Frustration over the slow pace of reducing nuclear stockpiles is shadowing the last day of the summit, President Barack Obama's last major push on denuclearization. Though Obama plans to tout the Iran nuclear deal as evidence of progress, the absence of key players including Russia underscores a lack of global unanimity.

Despite years of prodding by Obama and others, the global stockpile of fissile material that could be used in nuclear bombs remains in the thousands of metric tons. Security officials warn that radioactive ingredients for a "dirty bomb" are insecure in many parts of the globe.

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