So they killed Osama. He wasn't the real problem - his followers were, and they're still around. So is his money. At best his murder is symbolic. At worst, it will unleash a wave of terrorist attacks. We don't know what he was planning, what was in the works. It's time for all of us to be vigilant again.

I have been moved by the spontaneous outpouring of jubilation. Some cynics seem to think this was inappropriate and possibly staged. I think it was a cartharsis. Others have been criticizing the celebrations as if they are only about the assassination, as if they are blood-thirsty triumphalism. A few people (like Rachel Maddow) have looked back on the US and what has happened to us and what we have become since 9/11/2001. When you lay out all the facts what you clearly see is a nightmare. I think people were jubilant because that nightmare can be said to be over. That's worth celebrating.