[twothreeone]

Notice, however that it's not about _what_ to do, but _how_ to do it. And when it comes to to the how of human space flight, NASA has the experts, not Congress. Politicians rely on Engineers and Researchers to make informed decisions, it is therefore only a natural expectation on behalf of Congress that unreasonable, meaningless, or dangerous requests should be denied. If that doesn't happen the Administrator screwed up, it is that simple.