"Someone should be fired"

I find it strange to hear constant calls for someone in the Obama administration to be fired over the Christmas Day terror attempt by 23-year-old Nigerian Umar Farouk Abdulmutallab, as if this arose from the mistake or failure of a single individual. That's such an odd way to think about it, and so useless really. I heard some excellent analysis on NPR addressing that and other issues - what good would it do to fire, for example, Napolitano, and hire someone else to run the agency? She's barely been there a year, and what advantage would it be to put someone new in the post to start from scratch? So counter-productive.

And this statement: "Someone needs to be held accountable." seems to miss the point as well. The president is accountable, and he's been addressing the issue in a variety of ways. Let's figure out some useful measures that can be taken, instead of focusing on randomly punishing someone.