PRISM

[Lamplighter]

The NSA has finally learned that they can't know everything...

NY Times
MARK MAZZETTI and MICHAEL S. SCHMIDT
12/14/13

Officials Say U.S. May Never Know Extent of Snowden's Leaks

Investigators remain in the dark partly because the facility where
the former National Security Agency contractor Edward J. Snowden worked
was not equipped with software to monitor employees.
<snip>
Six months since the investigation began, officials said Mr. Snowden had
further covered his tracks by logging into classified systems using the passwords
of other security agency employees, as well as by hacking firewalls
installed to limit access to certain parts of the system.
<snip>
In recent days, a senior N.S.A. official has told reporters that he believed Mr. Snowden
still had access to documents not yet disclosed. The official, Rick Ledgett, who is heading
the security agency’s task force examining Mr. Snowden’s leak, said he would consider
recommending amnesty for Mr. Snowden in exchange for those documents.
<snip>

... but that won't stop them from trying.