Isn't it a federal crime to open someone else's mail?

Homeland Security opening private mail - U.S. Security - MSNBC.com:

A spokesman for the Customs and Border Protection division said he couldn’t speak directly to Goodman’s case but acknowledged that the agency can, will and does open mail coming to U.S. citizens that originates from a foreign country whenever it’s deemed necessary.

I'm not a lawyer, but this doesn't seem even remotely legal. I could see x-raying packages, but not opening letters.

Of course, Bush will remind us all that 9/11 changed everything and that the terrorists "hate us for our freedom".

I'd like to ask Dimwit: what $%#@! freedom? Apparently, Bu$hCo has eliminated them all by presidential fiat.

Impeach them all, NOW.