US President Donald Trump is accusing South Africa of human rights violations against its white farmers. He's cut assistance that includes critical HIV medication. Trump cited a law that allows the South African government to seize farmland and its genocide case against Israel at the International Court of Justice, for his decision. South African-born adviser to Trump - Elon Musk - is also accusing the country of what he calls, 'openly racist' land ownership laws. So what role does the billionaire play? And is humanitarian aid being weaponised?