Doesn't this video restore your faith, in American's humanity?

I think it is a video that captures both the best and worst in people.I admit when Elizabeth Hughes mike died ,I felt so much for the young girl.When I heard the woman laugh in the audience I could only hope she was a little humbled and hopefully a little ashamed of her shameful outburst.I admit my eyes teared up when everyone picked up immediately singing the anthem ,without missing a beat.Elizabeth has a beautiful voice and I was glad to hear she will be giving another opportunity to share her talent.