This piece pretty much sums up my own take on this. I have a VERY hard time believing that - unless they are utterly partisan or profoundly naive about how things work in DC - the 3 judge panel in the Miller case could have seen the Plame leak - in and of itself - as a "serious threat to national security." It just doesn't add up. And if there is some secondary charge such as obstruction of justice, that would sicken me as well, because the Bush White House has to all appearnces fully cooperated with Fitz, the exact OPPOSITE of how Clinton dealt with Starr. If Clinton's tactics were not obstruction and Bush's are obstruction, there is no goddamned justice in this world. It's a crock.
There is a major difference between your two examples. If it is charged, the Bush administration's obstruction will be tried by a competent court.
Clinton's obstruction, however, was tried by the U.S. Senate.