The US is currently spending at an unsustainable level. Blithely saying that a Greek or Irish type of financial debacle couldn’t happen here is whistling past the graveyard. More than a few financial analysts who watch such things and who are either apolitical or moderates are genuinely concerned about the insane and rising level of US debt. The Republicans aren’t making this up, even as they plan to exploit it.
But some liberals seem to be ignoring the facts, and offering no solutions because they don’t acknowledge the problem. That leaves them vulnerable to attacks from the right.