Earlier submission and much discussion here:

http://news.ycombinator.com/item?id=3639175

Interestingly, I searched for this with HNSearch and it didn't show up:

http://www.hnsearch.com/search#request/all&q=title%3ACop...

Am I the only one who finds HNSearch pretty much a complete waste of time? Searches always have to be repeated on Google because there are so many results missing.