Oops! Accidental posting of U.S. nuclear sites

Admit it: we've all sent an accidental message via our Blackberries.  An "oops" moment if you will.

Perhaps a text went out to the wrong person, a tweet on Twitter went across the web when it wasn't supposed to... you get the idea.

Well, let's imagine if you had classified, sensitive information... say, perhaps a list of more than 260 civilian nuclear sites and their activities in the United States.  Is there a system of checks and balances before something like that makes it online?
 
It happened, by accident, according to the White House, and has since been removed.
The 266-page document was published on May 6 as a transmission from President Barack Obama to the U.S. Congress. According to the document, the list was required by law and will be provided to the International Atomic Energy Agency.

I guess this just goes to show that the more security you need around you and your documents, the more sensitive they are.  The more technology you have, the easier it is to rely on it, which could have dire consequences.  The more nuclear sites you have… the bigger a target – oh wait, we’re not supposed to know that.  But, accidents happen.