“Additional tools?” They need to remove a tool, and that’s the AG himself.
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As I see it, if Holder did not know about the very serious Fast and Furious debacle until recently, then it shows that he is an incompetent Attorney General and Administrator, and so he should be replaced immediately by someone who knows what he is doing, and has the skills to know what the Justice Department is doing.
On the other hand, if Holder is lying and he knew all about and gave his approval to the Fast and Furious secret program all this time, then he must be forced out of office, because he is a liar, and we can't have someone as Attorney General who we cannot trust to tell us the truth about anything.