To the extent that revealing an E.O. doesn't endanger national security or other legitimate government purposes I agree completely that it should be public.

However I don't agree that it's safe in general to rely on a given Administration's "interpretation of the law". As Snowden has pointed out, the Administration can change... you should assume that what is permissible under the law and Constitution is actually being done, if that actually worries you.

So if the law says that the Government can intercept foreign communications pursuant to a trap-and-trace it's probably a good assumption to make that the Government is actually, at some point, trapping aforementioned communications.

I mean, if this was working just like a normal law enforcement scheme then you'd already have to deal with the possibility that the government is tapping a communications channel pursuant to a regular Article III warrant to investigate communications of a terror cell for months at a time. Presumably this wound theoretically still accumulate enough data (and metadata) to theoretically wreck your theoretical world should a theoretical despotism come to pass.

What an E.O. should do is to define where an Administration will focus its limited resources in enforcing the law. Perhaps they will decline to fully defend laws that are anti-homosexual in nature. Perhaps they will avoid aggressively going after marijuana usage (would be nice!). But even in that situation, if you cross state lines to buy weed you're still technically breaking the law and should be prepared for consequences of that; the E.O. could change tomorrow, after all.

And besides all that, what if they guy making an interpretation is at a much lower level. An individual cop might make a snap decision, do you expect them all to mail you a Policy & Vision Statement each month?

Even if that did, it would be hopeless to try to push the edge of 1000 different "lawful ways to enforce the law". Assume anything the law permits might be done.... and even then, it's hard enough to fully comply with all the law, even the ones that clearly fall within Constitutional guidelines.