First Lady Michelle Obama stood up against bullying in 2011.
She set up a conference dealing with this issue in order to sensitize people in America & find strategies & solutions to take on bullies.
In this video, Michelle delivers a speech to greet the audience, open the conference, present the issue and the reasons for her active campaign.
Here is the complete video with Barack Obama's speech following Michelle's.
Notice their body language et linguistic strategies to make the audience pay attention & convince the people that action must be taken.