Watch Obama’s Speech at Newtown Prayer Vigil

President Barack Obama spoke Sunday evening at a Newtown, Connecticut, vigil for those who died in last Friday's tragic shooting. He called for changing America's culture and possibly its gun laws as well. He acknowledged that, while no set of laws can "prevent every senseless act of violence," American society must attempt to mitigate the risk of future tragedies:

BARACK OBAMA: We can’t tolerate this anymore. These tragedies must end. And to end them, we must change. We will be told that the causes of such violence are complex, and that is true. No single law, no set of laws can eliminate evil from the world or prevent every senseless act of violence in our society, but that can’t be an excuse for inaction. Surely we can do better than this. If there’s even one step we can take to save another child or another parent or another town from the grief that’s visited Tucson and Aurora and Oak Creek and Newtown and communities from Columbine to Blacksburg before that, then surely we have an obligation to try.