Yep.
If they want to monitor your calls for other reasons, namely they think you might be a criminal, then a court order is necessary.
Only if it has to do with national security would I condone warrantless taps. And then only when they have a reasonable cause, as determined by the CIC's orders.
"if it has to do with national security" is pretty broad. As is "reasonable cause as determined by the CIC's orders".
You may not be saying what I think you are saying, so I'm just going to ask:
If the Federal government wants to wiretap a US citizen who has not made phone calls to or from terrorists and does not have any "serious indicator of belonging to Al Qaeda", on the basis that the tap 'has to do with national security' based on reasonable cause determined solely by the President, are they required to seek and obtain a warrant?
I didn't think that was really what you are saying, because this would mean the government can tap anyone it wants to simply on the President's say-so, but I wanted to be sure.