There are 43 quintillion possible permutations on a Rubik's cube – that's 43 billion BILLION! But for some, solving a cube is child's play, as correspondent David Pogue discovered when he met with some speed cubers – including a pair of remarkable world-record holders who are only eight years old.
"Sunday Morning" remembers some of the notable figures who left us this week, including actor Michael Madsen ("Reservoir Dogs"), and televangelist Jimmy Swaggart.
In this web exclusive, correspondent Tracy Smith sits down with Sabrina Carpenter to discuss the music superstar's career path; her "Short n' Sweet" tour; and how her mother influenced her approach to artistic choices and to dealing with fame.
