Answer:
Project Coast was a top-secret chemical and biological weapons program instituted by the South African government during the apartheid era. Project Coast was the successor to a limited post-war CBW program which mainly produced the lethal agents CX powder and mustard gas; as well as non-lethal tear gas for riot control purposes. Project Coast was headed by Wouter Basson, a cardiologist who was the personal physician of the then South African Prime Minister PW Botha. It was developed as a defensive measure in operations against Soviet-backed SWAPO, Cuban and Angolan troops. A number of devices, designed to look like ordinary everyday objects were created with the capabilities to poison those targeted for assassination. Examples included umbrellas and walking sticks which fired pellets containing poison, syringes disguised as screwdrivers, and poisoned beer cans and envelopes.
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