(edit): And this is suggestive:
ed_snowden@lavabit.com -- someone associated this address to some PGP key in 2010
edsnowden@lavabit.com -- no results
(edit): And this is suggestive:
ed_snowden@lavabit.com -- someone associated this address to some PGP key in 2010
edsnowden@lavabit.com -- no results