"The 9/11 hijackers and three of the men who plotted to kill innocent Americans at Ft. Dix were perfect examples of terrorists exploiting our weak immigration laws and our lack of enforcement." Most of the 9/11 hijackers were on legal visas, and the Ft. Dix plotters were brought into the United States as children (raised all of their lives within the U.S.). Timothy McVeigh, Jose Padilla, and Adam Gadahn, on the other hand, are/were all U.S. citizens. Quit stereotyping all immigrants as bad.