People place white crosses representing farmers killed in the country at a ceremony at the Vorrtrekker Monument in Pretoria, South Africa, Oct. 30, 2017. (AP Photo, File) CAPE TOWN, South Africa (AP) — U.S. President Donald Trump followed through on his promise to punish South Africa by signing an executive order Friday stopping all aid to the country over what he called a human rights violation against a white minority group. The Trump administration says a land expropriation law South Africa recently passed was “blatantly” discriminatory against its white Afrikaners, who are descendants of Dutch and other European colonials. The…