I know that he can be a bit silly sometimes, but this is a good read.

http://www.newstatesman.com/2013/07/slavoj-zizek-act-of-killing%20

This is the gist, imho, but there is plenty of more interesting inferences in the article.

It is often said that today, with our exposure to the media, culture of public confessions and instruments of digital control, private space is disappearing. One should counter this: it is the public space proper that is disappearing. The person who displays on the web his or her naked images or intimate data is not an exhibitionist: exhibitionists intrude into the public space, while those who post their naked images on the web remain in their private space and are just expanding it to include others.