Canada's electronic spy agency has been intercepting and analyzing data on up to 15 million file downloads daily as part of a global surveillance program, according to a report published on Wednesday.
Critics said the revelations, made in 2012 documents obtained by former U.S. spy agency contractor Edward Snowden and leaked to journalists, showed much more oversight is needed over Canada's Communications Security Establishment (CSE).
The documents are the first indication from the Snowden files showing Canada had its own globe-spanning Internet surveillance in a bid to counter extremists.
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