South Africa’s last apartheid president, F.W. de Klerk, has withdrawn from a U.S. seminar about minority rights because he did not want to embarrass himself or his hosts in the current charged racial climate, his foundation said on Sunday. De Klerk, who was the head of South Africa’s white minority government until 1994, was scheduled to speak on July 1 at an American Bar Association (ABA) virtual event on issues such as minority rights, racism and the rule of law. But his participation unleashed a barrage of criticism from South African opposition parties and activists who called on ABA to cancel De Klerk’s attendance given his role in the apartheid-era security apparatus. “The allegation that De Klerk was involved in gross violations of human rights is baseless,” the F.W. de Klerk founda...