OK, let's make this short and sweet.
The panic is that National Defense Authorization Act Bill is going to classify the United States of America as part of the battlefield in the Global War on Terror, with all that entails. The more excitable sites are saying that this would pretty much mean we citizens would only have rights at the government's pleasure: they will be able to execute citizens without trial. Now they've already done that, but the supposed difference here is they won't need a plane ticket next time.
I'm having trouble separating the truth from the BS, as is by design. Anyone have any insight on this? Hopefully something more reassuring than, "yeah, they can, but they totally won't, honest."