Just saying, there is no law on god's earth that would stop me talking to my girlfriend. The government simply does not have that right and I would NEVER recognise it.
You don't have to recognize that right so long as you're willing to take Snowden's route: flee to a country that is willing to stand up to the US and never return.
"…prohibits you…from disclosing this letter, other than to…an attorney to obtain legal advice or legal assistance with respect to this letter.""
Source: http://upload.wikimedia.org/wikipedia/commons/9/91/EFF-IA_Na...