Aside from the traditional "NSACoin" hypothesis (massive transaction graph waiting to be de-anonymized), here's another one: the private keys for the massive ho

Aside from the traditional "NSACoin" hypothesis (massive transaction graph waiting to be de-anonymized), here's another one: the private keys for the massive hoard of coins mined in the earliest days of Bitcoin are on a bureaucrat's computer, and will be used to crash the exchange rate - discrediting cryptocurrencies for all time. (Discussion here: http://www.loper-os.org/?p=1009 http://www.loper-os.org/?p=1009)