NSA memo to staff: Help us spy on foreign leaders

The heads of state of Germany, Brazil, and Mexico may be far from the only world leaders who've reportedly attracted the attentions of the US National Security Agency.

An agency memo leaked by Edward Snowden and published by the UK's Guardian newspaper Thursday contains a plea from the NSA for access to US officials' "Rolodexes" of contacts -- including "foreign political or military leaders" -- and mentions one instance in which an official provided 200 phone numbers for 35 world leaders.

Forty-three of those numbers, previously unknown to the agency, were "tasked" by the NSA, along with "several other" of the numbers.

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