South from Swakopmund across the gravel plains of the Namib Desert lies the dramatic Namib Naukluft Park.

BBC: A do-it-yourself Namibian safari

In this desert region of flat-topped mountains, russet hills, gravel plains and swathes of scrubland, the black rhino are not tagged or tracked by satellite, nor are their movements restricted by the boundaries of a huge game reserve.

BBC: Saving rhinos in Namibia

Lawson is now fighting off a budgetary collapse of this high desert town of 2, 100, where the paved and gravel roads have no traffic signals, only stop signs -- and even those are so faded from the sun that the village would like to replace them if it had the money.

CNN: On the border: Guns, drugs -- and a betrayal of trust