Irish lead singer of rock band U2, Paul David Hewson aka Bono, center, Ukrainian tycoon and philanthropist Viktor Pinchuk, left, and business woman Elena Pinchuk, walk, during the 15th Yalta European Strategy (YES) annual meeting entitled "The next generation of everything" at the Mystetsky Arsenal Art Center in Kiev, Ukraine, Saturday, Sept. 15, 2018. (AP Photo/Efrem Lukatsky)