http://vanish.cs.washington.edu/
"Computing and communicating through the Web makes it virtually impossible to leave the past behind. College Facebook posts or pictures can resurface during a job interview; a lost or stolen laptop can expose personal photos or messages; or a legal investigation can subpoena the entire contents of a home or work computer, uncovering incriminating or just embarrassing details from the past."
So, government hackers have developed a program that can let you set a time limit to your file accessibility on the internet.
It works like this, a girl posts a naked picture of his-herself on face book or myspace, she can set a time limit to how long it stays there and people can view it.
When the time limit is up, them POOF the file "self-destructs" meaning nobody can view it any longer.
personally I think this is a huge save for any post camera scene whore girls.