What Would you do as a parent???

Tuff was at Church and gave the prayer in class. He said, Dear heavenly father thanks for the church thanks for moms and dads we love you AMEN as loud as he could "we need to kill Bracka Oboma" His teacher was shocked. She told me when i picked him up. I didn't know what to say. I just laughed. She then looked at me and said you might need to watch what you say around him. That's true. but he gets things from the news more. He told me he was sick of the news because he didn't want to hear about a rock that is going to bomb us.lol What do you do?