Summary: Steve Kroft reports on how America’s lawmakers could legally buy stock based on non-public information simply because they wouldn’t pass a law against themselves – a law they finally passed after this story first ran. University President Freeman Hrabowski has turned the University of Maryland Baltimore County into a well-known producer of outstanding scientists and engineers, many of whom are minorities. Byron Pitts reports. She writes and sings all her own songs, sells millions of records and she’s just 22 years old. Lesley Stahl profiles music sensation Taylor Swift.