A South African company in the spotlight for paying $100,000 in speaking fees to White House adviser David Plouffe is also in business with a Liberian official under U.N. sanctions for his ties to convicted war criminal and former Liberian dictator Charles Taylor. That's among the latest details to emerge on the connections involving MTN Group, a subsidiary of which paid President Obama's former campaign manager for engagements in late 2010, shortly before he joined the White House. The ties to Liberia's bloody Taylor era center on Benoni Urey, who was commissioner of maritime affairs in Liberia during Taylor's reign....