GOP presidential contenders square off. Former President Trump is set to turn himself in today in Georgia. Deadly mass shooting at a California biker bar. Correspondent Steve Kathan has the CBS World News Roundup for Thursday, August 24. 2023:See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

On June 5th, armed men attacked worshipers at a Catholic Church in the city of Owo, Nigeria. Scores of people were reportedly killed and many more injured. My guest today,  Idayat Hassan, is director of the Center for Democracy and Development in Nigeria. We kick off discussing this church attack as well as another high profile recent attack on a train in northern Nigeria. Idayat Hassan then describes how these attacks fit into broader patterns of insecurity in Nigeria.   The increasing insecurity in parts of Nigeria today comes less than a year ahead of major national presidential elections scheduled in February 2023. But as Idayat Hassan explains the candidates are not emphasizing getting to the root cause of insecurity -- which she forcefully argues stems from a broken judicial system.