Rove failed to show before congress, again. Is it really a case of national security?

OK, the charge of political bias has been leveled in regards to the dismissal of several US attorneys, since when is this a matter of national security? Rove is hiding under Bush’s invocation of immunity from prosecution, executive privilege. If Rove is a patriot should he show respect? He could choose not to answer certain questions, this was the way it used to be, the security exemption was never used as a blanket excuse. Is it time for congress to make a stand, to declare the end of the Bush legacy of disregard for the workings of the law?

none of us are legal scholars(I guess)so this is more like a poll…should Rove be forced to appear?