Answer:
The Guardian
Explanation:
PRISM is a code name for a program under which the US National security Agency collects internet communications from various US Internet companies.
PRISM was publicly revealed when classified documents about the program were leaked to journalists of The Washington Post and The Guardian by Edward Snowden (as a NSA contractor) during a visit to Hong Kong . The leaked documents included 41 power point slides , four of which are published in news article.
Snowdown's subsequent disclosures included statement that government agencies such as the UK's GCHQ also undertook mass interception and tracking of internet and communication data.
