Guy called his shot perfectly.

They aren't mutually exclusive at all. In fact they are additive, aviation is actually very safe if you don't maximize profit.

Another factor that adds to those two is that the airport is operating over-capacity. The incident flight was only on the path it was on because it had to be rerouted last minute due to some "bunching" with the other landing planes. Fewer flights = much lower risk of getting jammed up = no redirects.

Another additive factor is that because of the "redirect", the flight crew is no longer on their planned flight plan in, but they are actively flying the plane to divert to a different runway. In itself, there's nothing unsafe about it. They agreed to it with ATC (who may have said "can't safely divert and land? Ok you have to go-around."). At the same time, it's a situation where they are operating at a higher capacity than if they were on a more routine landing, which is that much lower of a chance that they will avert the collision.

How is the show these days? I stopped listening a while ago, but I miss a civil engineering disaster pod.

Is there some connection between the twin towers and Biggie?

I heard someone on Democracy Now saying pilots fear National Airport more than any other. I guess Dulles is bigger and able to handle more traffic but it's kind of far from the district. All the lazy ass politicians and lobbyist flying in always go to National because it's close