Correlate that

1. Time - "a knowledgeable American official says U.S. intelligence provided London authorities with intercepts of the group's communications."

2. FT - "The detectives allowed the alleged plot to continue for as long as they dared. They followed the young Muslim men’s movements in London and other parts of the UK, listened into their meetings and monitored their spending."

3. WSJ - "The plot was foiled because a large number of people were under surveillance concerning their spending, travel and communications. Which leads us to wonder if Scotland Yard would have succeeded if the ACLU or the New York Times had first learned the details of such surveillance programs."

4.