The visa-issuance process plays a crucial role in detecting individuals with terrorist ties and stopping them from entering the United States. Perhaps in no instance was that more apparent than the terrorist attacks of September 11, 2001, when State Department policy prevented consular officers from properly scrutinizing the visa applications of several of the 19 foreign nationals who went on to murder nearly 3,000 Americans. And while the visa-issuance process was reviewed and amended after the September 11 attacks to better detect would-be terrorists from receiving visas, these measures did not stop attacks by foreign nationals who were admitted to the United States.
Numerous foreign-born individuals have been convicted or implicated in terrorism-related crimes since September 11, 2001, including foreign nationals who entered the United States after receiving visitor, student, or employment visas, or who entered through the United States refugee resettlement program. Deteriorating conditions in certain countries due to war, strife, disaster, and civil unrest increase the likelihood that terrorists will use any means possible to enter the United States. The United States must be vigilant during the visa-issuance process to ensure that those approved for admission do not intend to harm Americans and that they have no ties to terrorism.
In order to protect Americans, the United States must ensure that those admitted to this country do not bear hostile attitudes toward it and its founding principles. The United States cannot, and should not, admit those who do not support the Constitution, or those who would place violent ideologies over American law. In addition, the United States should not admit those who engage in acts of bigotry or hatred (including "honor" killings, other forms of violence against women, or the persecution of those who practice religions different from their own) or those who would oppress Americans of any race, gender, or sexual orientation.