Just heard of this. Sounds like it runs a risk of conflicting with our First Amendment right to free speech.
"However, the text of the order, if interpreted broadly, could cast a far bigger net to include not just those who commit violent acts or pose the risk of doing so in Iraq, but also third parties -- such as U.S. citizens in this country -- who knowingly or unknowingly aid or encourage such people."
As Thomas Jefferson said, "The spirit of resistance to government is so valuable on certain occasions, that I wish it to be always kept alive. It will often be exercised when wrong, but better so than not to be exercised at all. I like a little rebellion now and then."
Destabilizing Iraq, Broadly Defined - washingtonpost.com