I must confess that I missed this:

The piece is based on the diary of a South African Navy officer, lieutenant Lindsey Rooke, who took part in a secret atmospheric nuclear weapons test conducted in 1979 off the coast of Antarctica. The test, detected by a US satellite called Vela, was the validation of a military power that engulfed the whole Southern African region in a ‘cold-war’ conflict in the late 70s and 80s. Her diary shows someone in contradiction between her love for nature and the mission she was on, which left a trace of devastation, death and radioactive contamination in one of the most pristine and protected environments on earth.