Was Snowden public knowledge when Levison was first served a warrant? I can't remember. Levison was served with a warrant very quickly. Are you sure his actions

Was Snowden public knowledge when Levison was first served a warrant? I can't remember. Levison was served with a warrant very quickly. Are you sure his actions were to protect Snowden? EDIT: I meant, were Snowden's actions public knowledge when Levison was served the warrant? Not merely Snowden's name, but the extent of what he did?