User blog comment:Semanticdrifter/Digital Protest Against the FISA Improvements Act/@comment-68.35.77.13-20140205191355/@comment-20644-20140205191901

That's a great point, and the efficiency of these programs is a big part of the debate. There are some opponents of the NSA bulk data collection who have argued that collecting and storing so much data in such a blanket fashion makes finding relevant information more difficult. Think of the saying about finding a needle in a haystack. The bigger the haystack gets, the more difficult it is to find the needle.