Yeah...that'll work...
I'm sure those HDDs contained the only copies in existence other than on Snowden's personal laptop. None of the data is stored a dozen different places on the internet...
Here's a hint for the cops. The only likely reasons the entire trove isn't all publicly available, are that releasing a bit at a time A) keeps Snowden in the public mind so he feels safer and B) it sells a LOT more papers. If the US feds don't work out something with Snowden before the effectiveness of that strategy inevitably wanes due to the public going SQUIRREL!, it will all be available via wikileaks/torrent/etc.