How much will our corrupt government pay to have Snowden taken out?
I think Greenwald is sending the warning that if Snowden is gone, the info gets released. Only with Snowden still alive does the information continue to be secret. i.e. he has to log in with his biometric data every 24 hours or the info is automatically emailed to major news networks....just a guess.
IOW, if Snowden is gone, he can’t stop the release of all the info.