Mike Rogers actually said...

If the 1608 language was fixed so that we could use those additional 14 RD-180 engines, would it remedy the situation that you just all said...

I don't think you can start the certification process until you prove the technology works.

It probably won't take 2 years, but I would be surprised if it took less than 18 months.

Is that an acceptable national security risk, in your opinion?