Well, I would like to talk about the Prism event, which happened a few weeks ago. 

Maybe for the time being, this event can not be viewed as a historical event. But I am??? it is going to be in the future since it has such great influence to every person in the world. 

So what this event is about? 

Edward Snowden is a 29-year-old former technical assistant for the CIA and current employee of the defence contractor Booz Allen Hamilton.

Snowden has been working at the National Security Agency for the last four years as an employee of various outside contractors. 

According to a report from the Gardian, Snowden has disclosed a series of documents that have been classified as top secrets by the National security agency. It is said that the internet giants, including Google, Yahoo and Apple, leave "back doors" to the government to access personal information like "browsing /search / call history". 

Snowden said "I'm willing to sacrifice all of that because I can't in good conscience allow the US government to destroy privacy, internet freedom and basic liberties for people around the world." This event scared everyone in the world (not only in the US.), even though Google claimed they did not leave back door to the government and they review every request from the government very carefully and provide information according to the law.