That is a mostly correct assumption. Many of the constitutional provisions apply to American citizens only. There are some provisions, however, that apply to all persons. That is an historical debate that has been argued by many scholars. The deportation of those who are here illegal is perfectly legal and they are not protected by the 1st Amendment to the Constitution. The execution of those people, however, not only would be against every international law and treaty that the U.S. has currently entered, it would likely lead to "war" that NinjaNick wishes to occur. BTW, for anyone who has any knowlege on international law, international politics, or history... we lose that war.