by Madeleine Morgenstern
But the assertion raises as many
questions as it answers because court testimony indicated the subway
plot investigation began with an email.
Over the past days, The Guardian
newspaper and The Washington Post have revealed classified documents
showing how the National Security Agency sweeps up phone records and
Internet data in its hunt for terrorists. Those programs have come under
criticism from civil libertarians and some in Congress who say they
were too broad and collected too much about innocent Americans.
In one of those programs, the NSA’s
collected daily records of millions of phone calls made and received by
U.S. citizens not suspected of any wrongdoing.
On Thursday, Rep. Mike Rogers, r-Mich., who leads the House Intelligence Committee, credited that effort with thwarting a terrorism plot. But he did not elaborate.
The senior U.S. intelligence official
who asserted Friday that the phone records program together with other
technical intercepts thwarted the subway plot would not provide other
details. The official was not authorized to discuss the plot publicly
and requested anonymity.
Afghan-American Najibullah Zazi pleaded guilty in the 2009 plot, saying he had been recruited by al-Qaida in Pakistan.
The break in that case came, according
to court documents and testimony, when Zazi emailed a Yahoo address
seeking help with his bomb recipe.
At that time, British intelligence
officials knew the Yahoo address was associated with an al-Qaida leader
in Pakistan. That’s because, according to British government documents
released in 2010, officials had discovered it on the computer of a
terror suspect there months earlier.
Because the NSA and British
intelligence work so closely together and so little is known about how
the NSA monitors email traffic, it’s possible that both agencies were
monitoring the Yahoo address at the time Zazi sent the critical email in
2009.
What’s unclear, though, is how the
phone program aided the investigation, which utilized court-authorized
wiretaps of Zazi and his friends.
Based on what’s known about the
phone-records program, the NSA might have had an archive of all the
phone calls Zazi had made, which might have helped authorities look for
possible co-conspirators.
Because the phone program remains
classified, however, it’s impossible to say with certainty how the
program benefited the investigation.
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