All In with Chris Hayes 05/21/13

Day two of tornado tragedy in Moore, Oklahoma

The tornado that ravaged Moore, Oklahoma was one of the worst ever recorded. Search and rescue efforts continue as President Obama and FEMA activate emergency relief, and the death toll is revised downward as amazing stories of rescue begin to stream in.  Chris Hayes is joined by Thomas Roberts on the ground with the latest developments. ... more Duration: {{video.duration.momentjs}}