Nathaniel McGill, Sayma Syrenius Cephus, and Bill Twehway are being sanctioned for their involvement in ongoing public corruption in Liberia, according to the US Department of the Treasury. The United States has sanctioned senior Liberian government officials Nathaniel McGill, Sayma Syrenius Cephus, and Bill Twehway for their involvement in ongoing public corruption in Liberia, the US Treasury Department announced on …