Searching for warlord Joseph Kony; professional baseball player R.A. Dickey discusses his career; culture in the quirky town of Marfa, Texas

Lara Logan joins African soldiers and U.S. military advisers as they search for warlord Joseph Kony; Lesley Stahl interviews Cy Young Award-winning knuckleball pitcher R.A. Dickey; Morley Safer visits cowboys and artists in Marfa, Texas.