Illegal gold mining eats into Peruvian Amazon

On the banks of the Madre de Dios river, dredges work day and night in search of gold, part of a scourge of illegal mining that is slowly devouring the Peruvian Amazon.

Forensics lab cracks case on newer, 'greener' gunshot residue

Discoveries by West Virginia University forensic scientists about how gunshot residue behaves on skin, hair and fabric will allow crime scene investigators to catch up to the proliferation of new, eco-friendly types of ammunition ...

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