Driver beware: Dangerous debris in the road or from an unsecured load falling off other vehicles has been blamed for more than 200,000 crashes on U.S. roads between 2011 and 2014. A study from the AAA Foundation for Traffic Safety found 39,000 injuries and more than 500 deaths from those incidents during that time, reports CBS News correspondent Kris Van Cleave. A video from June shows an SUV hauling a boat. A pad comes loose and a motorcycle can’t get out of the way in time. "The really troublesome thing about all this is a majority of these crashes are preventable, if drivers would just take the necessary precautions to secure their load or maintain their vehicle properly," Tamra Johnson of AAA said.