Inside the billion-dollar plea agreement this week between the U.S. government and the Chinese telecom giant ZTE Corp. sits a tale of lawyers gone bad. And at least one who didn’t.

ZTE agreed to plead guilty on March 7 to illegally shipping communications and surveillance equipment to Iran in violation of U.S. export controls. The company also agreed to plead guilty to obstructing justice and making a material false statement to federal investigators. The plea agreement is pending before the U.S. District Court of the Northern District of Texas in Dallas.