The deadly tornado that ripped through Oklahoma on Friday was the biggest twister in U.S. history, a record two-and-a-half miles wide, with winds up to 295 miles per hour. The tornado traveled 16 ... more 
The deadly tornado that ripped through Oklahoma on Friday was the biggest twister in U.S. history, a record two-and-a-half miles wide, with winds up to 295 miles per hour. The tornado traveled 16 miles on the ground. At least 18 people were killed in the storm. Norah O'Donnell reports. less 
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Wed, Jun 5, 2013 10:59 AM EDT