No hoverboard currently on the market can be deemed safe.That's the startling conclusion the U.S. Consumer Product Safety Commission (CPSC) reached after its months-long investigation into the safety hazards posed by hoverboards.On Thursday, the CPSC sent out an official notice to retailers, manufacturers and importers with new hoverboard safety standards that, if not followed, could result in enforcement actions, including seizure of the devices as well as civil and criminal penalties.