It is estimated that in 2006 alone there were 1.3 million papers published in 23,750 scientific journals. But what happens when a paper gets 'unpublished' - withdrawn or retracted? I caught up with Dr. Ivan Oransky and Adam Marcus, founders of RetractionWatch. A blog that follows retractions as they happen and investigates the stories behind them, RetractionWatch uncovers a world of falsified data, plagiarism and ethics violations.