Alan Boyle has another report from Oshkosh (some people get the best gigs).

Griffin downplayed media reports about vibration problems with the Ares 1 rocket, saying that there were “half a dozen means to mitigate that” and that two top strategies would be selected for further study next month. “Let me put it this way: I hope this is the worst problem we have in developing a new system,” he said.

Of course he did. That doesn’t mean they aren’t true. I haven’t seen any ways to mitigate it that don’t involve a lot more weight and performance penalty on a vehicle that’s already out of margins. I too hope that it’s the worst problem they have, because if they have any that are worse, the program is in deep, deep kimchi.