Should bicyclists ride with traffic or against traffic?

You always travel with the traffic when riding a bicycle. It is when you are walking on the road that you travel against the traffic

Riding against traffic highers the risks of getting injured or hit by a car. The impact is deadly but traveling with traffic is less tragic.

This crazy notion, the idea of riding blindly with traffic, was decided by the US Dept. of Transportation along with colored and high intensity automobile headlights. (So we can be blinded by oncoming traffic in our cars) As it was decided by scientists and government types, I would go with what I was taught as a child: watch the cars! And get out of the way when a car comes near you. Not, look in your rearview mirror and, hope you don't get hit.