At least on boiled frogs:
Is America on its way to becoming a boiled frog?
I'm referring, of course, to the proverbial frog that, placed in a pot of cold water that is gradually heated, never realizes the danger it's in and is boiled alive. Real frogs will, in fact, jump out of the pot -- but never mind. The hypothetical boiled frog is a useful metaphor for a very real problem: the difficulty of responding to disasters that creep up on you a bit at a time.
Even the President of the United States doesn't seem to understand that real frogs jump out of boiling pots. Score one for Krugman.