60 MINUTES" LISTINGS FOR SUNDAY, APRIL 8, 2012

AN IMPERFECT UNION - Steve Kroft reports on the debt crisis in Europe, where weaker members of the European Union struggle to pay debt and try to avoid a financial crisis in the Eurozone that could spread to the U.S. Graham Messick and Coleman Cowan are the producers.

THE SPORT OF KINGS - Polo is one of the oldest organized sports in the world and its leading star, Ignacio "Nacho" Figueras, plays it with a style befitting his other role as the face of Ralph Lauren's iconic fashion brand, Polo. Lara Logan reports. Max McClellan is the producer.

JOY IN THE CONGO -The Congo's Kimbanguist Symphony Orchestra grew from one man's dream to 200 musicians and vocalists providing joy to the mostly poor, bleak capital of Kinshasa. It's now the only symphony orchestra in Central Africa and the only all-black one in the world. Bob Simon reports. Clem Taylor and Magalie Laguerre are the producers.