Giant tornado in Oklahoma

I'm sure you've heard of it by now, but if you want to know more about the disaster which took place in Oklahoma in the US, please check out the following links:

http://www.youtube.com/watch?v=BfzifrG0Dj0

http://www.washingtonpost.com/national/health-science/huge-tornado-levels-oklahoma-city-suburb-killing-dozens/2013/05/20/3cb4a08a-c19d-11e2-ab60-67bba7be7813_story.html?wpisrc=nl_headlines

5 ways to help the victims:

http://blogs.wsj.com/speakeasy/2013/05/21/five-ways-you-can-help-oklahoma-tornado-victims/?mod=e2fb