Hints and tips:
...That could lead to a new form of “predictive braking”, with cars slowing themselves gradually as risks increase, reducing or even eliminating rear-end collisions....
...collisions....
...For now, advanced sensor and camera systems are mostly confined to high-end models....
...Some alarmists worried that the collisions might create pernicious particles such as “strangelets” or black holes capable of destroying Earth....
International Edition