Reportedly based on Edward Snowden NSA documents provided to Glenn Greenwald who co-authored an article for Brazil’s O Globo newspaper.
Source of four slides:
http://oglobo.globo.com/infograficos/volume-rastreamento-governo-americano/
Translation from Portuguese to English by Google, slides by Cryptome.
Original in Portuguese
![[Image]](http://cryptome.org/2013/07/nsa-tracking/nsa-oglobo.jpg)
from here