Henry Blodget is learning some hard truths (again)! This morning he's gone all up on the Twitter, to explain, on behalf of his publication, Business Insider, that investigative reporting is time-consuming and expensive! (Did you know that?) "All right, look, here's the truth about this investigative reporting thing…" he wrote. "Everyone says they want more of it. No more aggregation, please. No more links. No more slideshows. No more picture [sic] of Erin Burnett." He is talking about Nick Carlson's new story on the origin of Facebook, but he simply can't give these kinds of stories to you all the time! "But the truth is, if we tried [...]