In the end, though, some thought has to be given to why Monica Goodling feels obligated to take the Fifth rather than merely telling Congress what happened in the AG's office. She's no criminal -- but what could happen to her surely is.
No. That's wrong. Goodling isn't asserting the Fifth because of what she might do, it's what she probably already did. In all likelihood Goodling caused another member of the Justice Department to perjure himself before Congress, and that is the crime that she is asserting the Fifth Amendment to protect herself against.
Her lawyer might argue otherwise, but that is his job. It's Cohen's job not to be fooled. He failed again.