Spread The Word To End The Word

I'm sure that by now most of you have seen this commercial from the organization Spread the Word to End the Word, but I had to share it here.  I had to share it because I simply don't understand why I hear the "R" word so much.  I don't understand how the same young men who are one minute discussing astrophysics on an elite college campus can turn around the next minute and call each other "retarded".  I have to say that when I was growing up we used the "R" word all the time in school.  We would say someone was retarded or their idea was retarded.  We didn't understand the connection to real people.  I'm so glad that there is a campaign out there to raise awareness about how this word can hurt.