00567nam a2200121Ia 4500 20260716043852.0 Ting, Jan C. Immigration and national security 2006 Opines that the greatest threat to U.S. homeland security comes from illegals who enter the country through its porous borders in order to attack. Suggests that legal immigration itself needs reform, particularly the visa-waiver program and the rules governing dual citizenship, which pose further security challenges. 3/6/08 JOYD A 55793 55793