Does "the interception of a “large number” of calls
placed from Washington" mean "(NSA agents in Washington placed the interception on a large number of calls)"?
Context:
In one instance, the NSA decided that it need not report the unintended surveillance of Americans. A notable example in 2008 was
the interception of a “large number” of calls
placed from Washington when a programming error confused U.S. area code 202 for 20, the international dialing code for Egypt, according to a “quality assurance” review that was not distributed to the NSA’s oversight staff.
More:
http://www.washingtonpost.com/world/national-security/nsa-broke-privacy-rules-thousands-of-times-per-year-audit-finds/2013/08/15/3310e554-05ca-11e3-a07f-49ddc7417125_story.html?hpid=z1