International business can be an ethical jungle, but it’s rare to get details of bare-knuckle tactics on tape. According to a recording and sworn testimony provided to The Associated Press, a lawyer in Mexico for a leading U.S. drug manufacturer offered to pay an opposing expert in a lawsuit if he would leave the country on a key court date to undermine the case. The company, Baxter International Inc., promotes itself as a champion of global anticorruption efforts. Baxter said the lawyer was not authorized to make any offers, and it has severed all ties with him.