PRISM surveillance foiled plot to bomb
The US intelligence programme to collect emails that is at the heart of an uproar over government surveillance helped foil an Islamist militant plot to bomb the New York City subway system in 2009, US government sources reported.
The sources said Representative Mike Rogers, chairman of the House of Representatives Intelligence Committee, was talking about a plot hatched by Najibullah Zazi, an Afghan-born US resident, when he said on Thursday that such surveillance had helped thwart a significant terrorist plot in recent years.
President Barack Obama’s administration is facing controversy after revelations of details of massive programs run by the National Security Agency for collecting information from telephone and Internet companies. The surveillance program that halted the Zazi plot was one that collected email data on foreign intelligence suspects, a government source said.
NSA and FBI officials have been collecting browsing data and snooping on Internet-based communications to fight terrorism
The Washington Post and The Guardian published top-secret information from inside NSA that described how the agency gathered masses of email data from prominent Internet firms under the PRISM programme. Some of the companies denied that the NSA and FBI had “direct access” to their central servers.
On Friday, CBS News reported that US authorities had discovered the Zazi plot after running across an email sent to a rarely used Al Qaeda address that was associated with a notorious bomb-maker based in Pakistan. The report said that the authorities had traced the sender of the email to a suburb of Denver. At the time of Zazi’s arrest, authorities revealed that he had been tracked from Denver to New York, where, after a brief interlude during which investigators lost track of him, he was arrested by the FBI. In February 2010, Zazi pleaded guilty in federal court in Brooklyn, New York, to charges that included conspiracy to use weapons of mass destruction and providing material support to terrorists.[source:tech2]