A new initiative in South Africa is safely placing radioactive isotopes into rhino horns and using existing nuclear security infrastructure to detect and deter illegal trade. Sean Hogan has more.

South Africa has launched an innovative anti- poaching campaign, injecting rhino horns with radioactive isotopes to deter illegal trafficking.

CAPE TOWN, Aug. 1 (Xinhua) -- South African researchers have started injecting small amounts of detectable radioactive isotopes into rhino horns to deter poachers and traffickers, according to a statement released Friday by the University of the Witwatersrand (Wits University).