Many automobiles use white led headlights in their vehicles. At night while driving if a vehicle behind your car flashes the white lights then,as the lights shine in your eyes through the rear view mirror, it makes it difficult to see. 

This may cause vehicular accidents, loss of life and damage to your car. The problem magnifies during rains when the visibility is anyways less. 

I urge the automobile manufacturers to ban these white led lights totally and use only yellow lights.