"There are people in this world that want to do us or harm."
This is true and, in many cases, they have very good reason for wanting to do us harm. Al Qaeda is one very good example, but there are also many others in that part of the world. We have a long history of meddling in the Middle East and have caused a lot of suffering in the process. It was just a matter of time until a bin Laden came along and delivered a retaliatory blow, even with the knowledge that it would result in a devastating response. Until we change our policies, we will be faced with an endless war against enemies who are resilient, patient, and resourceful. Iraq and Afghanistan are just the beginning. We cannot continue down this path and remain an economically strong, free country. Carpet bombing is not the answer, nor any other military solution, as the last 10 years have demonstrated. Changing our policies will produce much better results. For everyone.
"I'm guessing you'd be in favor of going back to a Carter military or less."
I'm not much into labels, but I will tell you that I am in favor of a military designed to defend our country, not a military designed to impose our will on the world. The latter is unsustainably expensive and ultimately doomed to fail. I am betting we could have a military that would make it insanity for any nation on earth to even think of attacking us for, say, $100 billion, max. Anything beyond that is an imperialistic military, and I will not support it. History is littered with the bones of empires, and it would be a tragedy to add ours to the pile. If that is a Carter military, than I am in support of a Carter military.