This is the third part in a three-part column. The first part was published on Monday and the second part on Tuesday.When Kevin Clanton sued the United States under the Federal Tort Claims Act for nursing negligence that destroyed his kidneys, the government (with no objection) invoked the periodic–payment provisions that the Illinois Code of Civil Procedure provides as an option for medical-malpractice cases — but this arcane statutory scheme created major headaches.U.S. District Judge Nancy J. Rosenstengel …