What is the fine-grained topic of the following text: Cardinal Blase Cupich, leader of the Archdiocese of Chicago, will discuss his efforts to use his pulpit to bring attention to the gang violence fracturing some of Chicago's neighborhoods and his new philanthropic foundation, The Instruments of Peace Venture Philanthropy Fund, to fight it. Only return the topic.
Cardinal Blase Cupich's efforts to address gang violence in Chicago through his pulpit and philanthropic foundation.