One would think that Randi Zuckerberg, older sister to one Mark Zuckerberg, founder of Facebook, the omnipresent social media platform would be well versed at PRIVACY settings--apparently not. Our best source confirms that a recent family photo Randi Zuckerberg shared with her friends on Facebook, appeared in a public feed and then was copied and tweeted to several thousand on another ubiquitous social media platform--Twitter. The culprit? A one, Callie Schweitzer. Click here for the full story.