President Barack Obama delivered his speech during the Joplin High School Commencement Exercises in Joplin, Missouri.
President Barack Obama delivered his speech during the Joplin High School Commencement Exercises in Joplin, Missouri. Kansas City Star/MCT
President Barack Obama delivered his speech during the Joplin High School Commencement Exercises in Joplin, Missouri. Kansas City Star/MCT

Obama addresses Joplin High School grads on eve of tornado's anniversary

May 22, 2012 6:57 AM