Is this good or bad???
It's bad. This morning the news was that Treasury would explain that everything was okay and there was no need to panic. Now they've moved on to needing to "do" something to prevent the panic. 3 billion in short term bonds goes on sale tomorrow, as scheduled, and if there are no buyers, then there is a significant problem.
Not to worry, though. These corporations are backed by the earning power of the US taxpayers.