The events in Boston last week took me back to Sept. 11, 2001, as I'm sure it did for a lot of you as well. The 9/11 Museum opens in less than a year. 60 minutes got an early tour and we have it here. About a year from now, at ground zero in New York City, one of the largest and most ambitious memorial museums in the world is scheduled to open its doors to tell the story of that day, it is the National September 11 Memorial Museum. Here is an early peek.