The ATF has gotten people killed under republican and democratic administrations both. Pretending this isn't the case only gives the ATF more fuel to get away.
Criminal responsibility at the top of the Executive Branch is a fiction made up by a power hungry GOP leadership. The fact that all this political bullpuckey works to protect the guilty within the ATF is of no importance to them.
How many more bloody, body strewn debacles will it take from the ATF before we stop seizing onto each new crisis as a political weapon and go after this twisted mess of an agency instead?