NHTSA is ordering autonomous vehicle developers to explain by the end of the month how they will stop driverless cars from interfering with police, firefighters, and paramedics. TechCrunch reports: [NHTSA Administrator Jonathan Morrison] noted in the letter (PDF) that the agency has “identified a clear pattern of driverless AVs interfering with law enforcement and other first responders,” citing instances in which these vehicles drove into active emergency scenes, blocked the paths of ambulances and firefighters, or failed to recognize and respond to basic safety conditions like flashing light