The difference is that Rosenbergs traded detail technical know-how that was protected by legal (contract and state secret) classification, and the support for terrorisim and communism is an idealistic argument that has been going on for all of human history.
Seriously, is this differentiation difficult to identify? Giving troop movement plans is espionage. Being generally sympathetic with the enemy is not espionage.
Like missile tech the Clintons gave to China, and heavens knows what other information of this sort and worse that were given to unfriendly actors
We are not talking about pictures of Grandkids here, watch the Snowden movie and understand the level of espionage that has been going on and if we gave it to other countries to be used against us what do You call it?
Not sure where you are peddling that bike but this is not civil liability or the like, this is truly High Crimes and Misdemeanors and much more
So just what do you see in the future any of them can be charged with, jaywalking?
Sorry to be trite but I ask in earnest just what you think has been going on here???