Kurt Busch is "challenging" in the words of Jack Roush. At least that's what he said when he was interviewed in the prerace before the Michigan race. "Challenging" and I beleived Jack also said something about "it's gonna stop" or "come to an end". I didn't quite get the whole quote but I got enough of the gist of it to really hear what he was saying. Man oh man, this is gonna get ugly before it gets better. Mark my words.