A river of molten chocolate blocked an Arizona freeway near Flagstaff Monday afternoon after a crash. According to the Arizona Department of Public Safety, the crash happened on Interstate 40 east of Flagstaff. A tanker carrying 3,500 gallons of 120-degree liquid chocolate overturned. About 40,000 pounds of chocolate was spilled on the road. The Department of Public Safety said it will be a ‘sweet cleanup.’