Explainer: Why Nuclear Smuggling Looms Over Washington Summit
![Explainer: Why Nuclear Smuggling Looms Over Washington Summit](http://gdb.rferl.org/9834FA4B-731E-4618-A3DC-75B5E5C5C155_cx0_cy19_cw0_w800_h450.jpg)
It's not loose nukes that worry experts but rather nuclear materials like plutonium that could be used in a terrorist dirty bomb.
It's not loose nukes that worry experts but rather nuclear materials like plutonium that could be used in a terrorist dirty bomb.