(AP Photo/Jerome Delay, File)FILE - Farm workers harvest sugar cane on the property of Charles Senekal near the South African town of Mkuze, Kwazulu-Natal, Nov. 30, 2018. (AP Photo/Jerome Delay, File)FILE - Farm workers harvest sugar cane on the property of Charles Senekal near the South African town of Mkuze, Kwazulu-Natal, Nov. 30, 2018. (AP Photo/Jerome Delay, File)FILE - Farm workers harvest sugar cane on the property of Charles Senekal near the South African town of Mkuze, Kwazulu-Natal, Nov. 30, 2018. (AP Photo/Jerome Delay, File)JOHANNESBURG -- A court case opened Monday challenging South Africa’s controversial new law that allows the government to seize private land, which has been at the heart of strained relations with the administration of U.S. President Donald Trump. Lawyers for the groups argued Monday that the law violates the South African Constitution's protections of private property and prohibitions of expropriation of land without compensation.