His name is Peter Hammond and he is the Director of Frontline Fellowship, a Christian Mission that goes into war zones, including South Africa. Hammond challenged Nelson Mandela on things ranging from abortion (which Mandela endorsed) to Communism (which Mandela also supported) in a meeting withe the former South African leader and was paid back with a thirteen year audit.
From the group’s About Us page:
Evangelising in War Zones
Assisting Persecuted Churches
Working for Reformation and Revival in Africa
Serving God in: Angola , Mozambique , Malawi, Nigeria , South Africa , Sudan , Zambia , Zimbabwe and the Congo.
In this two-part video, Hammond relayed the details of his meeting with Mandela.
It’s a Must-see (h/t USA Survival).