A scheme by employees at Swiss industrial firm ABB to pay bribes for contracts at South Africa’s State-owned power utility nearly fell apart in a dispute over who would share in the spoils, US court filings show. The filings give a fresh look at corruption at Eskom, the power company plagued by deteriorating finances and regular blackouts. The case, by US prosecutors and regulators, also sheds light on evolving US policy toward companies like ABB that have repeatedly broken the law.