Well. They definitely were too big to fail in one sense of the word. We couldn't let them fail without dragging half of our system down with them.
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MYP. I read the article and wasn't impressed. It was a particularly weak argument (I personally know of better ones for that side).
The first two mainly argued that we could end up in debt if we kept supporting the banks. That's not a real danger. Obama already worked up the numbers for a decent surplus next year that should even carry over if things don't get much better.
We also have about another 3.5 trillion to borrow before we hit the danger mark. So, as long as Obama and the government is aware of it, there isn't any danger.
I have no idea what they are talking about with The Lost Decade. If I remember correctly, the Japanese crisis was caused by deflation that killed consumer spending and made things stagnate. I really have no idea how our current policy could do anything close to that.
*Edit - I dug around for a minute and I guess I see the argument. It's wrong though. These aren't zombie banks that we are supporting to keep them alive. AIG is the only thing that's close to it. The main banks are returning to profitable margins now that credit has started to flow. We didn't keep AIG alive for the sake of it, we did it because it was more efficient to keep it alive than to let it fail and bailout the few dozen other banks it would take with it. Even letting them fail would have a high cost due to the FDIC. The ones that were zombies failed or got bought out. A big aspect of the lost decade was the frozen credit market, which we've already started to thaw.
The third guy has an idealogical point. They should be held responsible. I don't know of anyone who doesn't really agree with that. Only the fool blindly follows an ideal though. If we let them all fail, the credit crunch would have hit mainstream businesses and it would have been catastrophic. We had to unfreeze the market before we could do anything to make it better.
Realistically, the market should be ready to take back control once we finally get the toxic assets off the books. I've heard that what we're doing is pretty similar to the S&L crisis solution, which worked out fine in the end.