Keywords: 500 workers attended a stand-down at the Daytona International Speedway with NASCAR Sprint Cup driver Greg Biffle. (14427069783).jpg 500 workers attended a stand-down at the Daytona International Speedway with NASCAR Sprint Cup driver Greg Biffle https //www flickr com/photos/usdol/14427069783/ 500 workers attended a stand-down at the Daytona International Speedway with NASCAR Sprint Cup driver Greg Biffle 2014-06-12 13 33 https //www flickr com/people/52862363 N07 US Department of Labor PD-USGov US Department of Labor https //flickr com/photos/52862363 N07/14427069783 2016-09-06 06 10 53 United States Government Work Daytona International Speedway Greg Biffle June 2014 in Florida NASCAR drivers in 2014 |