Although I am personally against any and all domestic spying on US citizens without an appropriately and properly obtained warrant, for those who believe that this sort of program is valuable and necessary to thwart terrorist attacks on US soil, there is a possible solution.
It is readily apparent that the current rules (FISA) can not be modified to handle warrant requests for the data mining activity authorized by the President and currently being utilized by NSA (or, conversely, that warrant requests can not be written in a manner to overcome the requirements of FISA). It is also apparent that any potential changes to the law proposed by the administration or by Congress to rectify the perceived weaknesses of FISA in this regard would likely violate the 4th Amendment to the US Constitution. It would seem that this places supporters of such activities in a catch 22 situation. However, this is not the case, and supporters of these activities instead have a choice.
Their first option is that they can pack it in and end all such activities. If they can not find a constitutionally permissible alternative that can pass muster in the administration and Congress, then they have the option of working harder using all other means available to them to investigate and thwart the potential actions of those who mean to harm this country through terrorist activities. Many have written, in my opinion correctly, that the 9/11 attacks could have been thwarted through better cooperation and communication by and within our various national security departments. Lack of "intelligence" was not the problem.
But there is a second option. These folks can seek an amendment to the Constitution. This amendment could simply provide for an exception to the general rule of the 4th Amendment, allowing such data mining activities with certain restrictions (for example, one such recommended restriction would be that any and all information gathered can only be used in the prosecution of certain specific terrorism related criminal laws and not of any other criminal activity--yes, yes I know that there is an issue with the definition of "terrorism related criminal activity but for these purposes I am assuming that this can be properly defined by reality based adults). If those who support this type of activity really believe in the need for and effectiveness of this type of activity, then they should take their case to the public in a transparent manner and make their case. Frankly (and sadly), I think that there is a very large part of the American public which would support something like this.