said by Mchart:NSA (Or any DoD agency for that matter) is bound by the law to not touch *anything* that has to do with any 'five eyes' citizens. The caveat to that is unless it has been legally deemed that said person is a threat to said national entities.
So while the NSA may or may not have the capabilities to crack your stuff - They can't. On top of that, i'm fairly certain they have bigger fish to fry.
There is controversy within the crypto community about what NSA can do. There's not much doubt they are several years ahead of the "rest of us" where cryptanalysis is concerned, but most expert cryptologists do not believe they can crack algorithms like RSA or AES. However, they can launch massive dictionary attacks, but that's easy to defend against (but most people probably don't since people tend to be lazy).
But you make a good point; whatever NSA's capabilities, it's highly unlikely that they would get involved in the first place, even if one were running a major criminal enterprise. They simply don't deal with anything that's not a threat to national security. We already know the FBI cannot break the public ciphers like RSA/AES since several past cases have illustrated their helplessness with cracking PGP and other crypto standards.
To the OP: the bottom line here is that it doesn't matter what e-mail provider you use if your data is not being encrypted end-to-end. I have explained why this is and how to do it in my previous posts. Don't rely on providers like Hushmail since they aren't well vetted.