The problem with the Patriot Act is not the collection of data, but the use of the data. So much trust has been lost in govts. around the world that no one really believes that the NSA are not making use of data that they have no business analysing. However, if their WAS trust, I think the idea that only data mined according to specific rules would be used would be ok. After all, the phone companies has this data anyway and they sure as hell don't destroy it - they use it for customer analysis and marketing.