In the case of a misdial, a warrant can be easily issued based on the presumption that the number was dialed deliberately. If that presumption can not be made, then any dialing of a known suspected terrorist must be presumed to be misdialed.
You can't have it one way and not the other.
"And I'm saying that if known suspected terrorists' numbers dialed from American soil are not investigated, the program has no value at all."
They are. So is it now your argument that warrants shouldn't be applicable to those dialed from American soil?
They are, he's misinformed. They are also monitored without a warrant, when one end of the connection is located outside the US. Comes under both the President's inherent powers as Commander in Chief, and under the Congressional resolution authorizing the President to use the military of the United States to prevent another terrorist attack.
However if the person on the US end then calls another US number, a court order is required to monitor that conversation, but the collecting the fact that the number is dialed does not. In principal it's no different than watching you as you walk down the street, and observing who you visit or speak with. If you speak with known terrorists, expect to explain yourself, voluntarily or by court order.
"And I'm saying that if known suspected terrorists' numbers dialed from American soil are not investigated, the program has no value at all."
Known or suspected terrorists numbers that are dialed frm American soil can and probably are investigated. The difference is that these require a warrant.