The other day I wrote that I think this terrorist threat is serious because it came right after Dean said that catching Saddam has not made America safer. Since increasing the threat level validated what Dean said, I don’t think they would do it when they did unless it was for real.
Another reason I think it is serious is that for several days the right-wing AM radio hosts have been talking about how al-Queda wants Bush out of office, and will use an attack on America as an attempt to accomplish that, and that if one does happen, all the pro-al-Queda Democrats will be criticizing Bush for letting it happen. This is before-the-fact immunizing Bush, and before-the-fact politicizing such an event against Democrats. If this is their marching orders, it means that The Party is pretty sure something is coming.