Two F-15s collided and crashed over the Gulf of Mexico on Wednesday. One pilot was killed.
The F-22 has a 20mm gun, as does the F-15. That means that the F-22 pilots are going to train in air combat maneuvering and they are going to have to practice it. That is the "up close and personal" form of air combat, the "get behind the other guy and shoot him" type, not the "fire a missile at a blip on the scope" type. They will be mixing it up in training. And shit will happen, like it did to those two F-15s.
Only when it happens to F-22s, a collision between two of them will result in half-a-billion dollars worth of airplanes falling out of the sky.