Here's what you may have missed this week on 60 Minutes.Broken system making it harder for patients to get life-saving generic drugsStudents, parents from five Chicago schools will get college for freeJonas Kaufmann: Opera's star tenorGoing to college with a "Hope" scholarshipWatch Tenor Jonas Kaufmann perform at The Met in New YorkMore on the kids featured in 60 Minutes' story on essential drug shortages