Is Warrant less Wiretapping in some cases justified to protect National Security?

I need your views on this please.Is Warrant less Wiretapping in some cases justified to protect National Security?
That is one of those slippery slope kind of things. Well, if we can listen in when one side of the conversation is outside our borders why can we not listen to calls within the US that are routed outside the country through the satellite network(that is an actual argument used by the NSA to Congress in 2003).Is Warrant less Wiretapping in some cases justified to protect National Security?
No. It is not justified to protect National Security. Isn't it odd how all of a sudden, within just a few months time, it seems that everyone is spying on us, and that all of these steps, and laws, etc. which are being pushed through the legislation, are necessary? This is what we have been told by our administration. It's crap, nothing more. Our administration is doing nothing more than trying to take complete and total control over this nation, and the people of this once great nation. They are in every aspect of our lives now, and to the point of listening in, searching us, and taking posession of us, our lives, homes, etc. with no reason, and no warrants. No warrants is a violation of not only our Constitution, but also the laws which were once in place to protect the people of our nation.