It would be interesting to know whether the NSA program helped snag Babar and his buddies across the Atlantic. From the BBC:
Seven British citizens had acquired “most of the necessary components” to launch a bombing campaign in the UK, the Old Bailey has heard. Prosecutor David Waters QC said “pubs, nightclubs and trains” were discussed as potential targets, but police moved in before the plot “reached fruition”…. Mr Waters told the jury they would be hearing from an American citizen, Mohammed Babar, who conspired with the defendants. Babar has pleaded guilty to terrorism offences in the US and, according to the prosecutor, “has an insight as an insider into the events and plans which an outsider could not have”. It is claimed Babar met several of the defendants in England and in Pakistan, where many of them have family connections. Mr Waters said the defendants’ “principal purpose” in travelling to Pakistan was “to acquire expertise in relation particularly to explosives”. It was during a meeting with Babar that 24-year-old defendant Omar Khyam, from Crawley in West Sussex, allegedly told Babar his targets could include pubs, nightclubs and trains…. The prosecutor said Mr Khyam and co-defendant Salahuddin Amin, 31, from Luton in Bedfordshire, both told Babar they worked for a man who they claimed was “number three in al-Qaeda”.