Edit:
Also regarding the Rogoff data. Sure, those findings really were crap but surprise, surprise, it was crap that policy makers were oh so eager to hear. One might blame the falsity on the dumb use of spreadsheet but it seems more likely it was a case of "let's fudge data in a crap fashion till we come up with what people want to hear". Then when someone points out how it's crap, we always blame the spreadsheets.
Rogoff has a pretty long history of publishing what well-heeled people apparently want to hear, it's amazing that he was able to hide behind the "this was just a spreadsheet error" point.
The problem is I've mostly observed his chameleon act in radio interviews pre and post crisis. The pre-crisis interview, he claimed their was no problem and the post-crisis interview, he talked about how angry he was against the folks who claimed there was no problem, so unfortunately I can't provide a link (the files probably wouldn't be online anymore even if I took the trouble to find the link - smart shills do things by voice, it seems).
http://krugman.blogs.nytimes.com/2014/05/24/is-piketty-all-w...
Edit: Also regarding the Rogoff data. Sure, those findings really were crap but surprise, surprise, it was crap that policy makers were oh so eager to hear. One might blame the falsity on the dumb use of spreadsheet but it seems more likely it was a case of "let's fudge data in a crap fashion till we come up with what people want to hear". Then when someone points out how it's crap, we always blame the spreadsheets.