Although such a system makes it harder for would-be terrorists to slip through, Brinkman maintains that it could hobble the U.S. economy and actually compromise national security.

• 虽说这样的系统使得潜在的恐怖份子较难溜进美国，布林克曼却认为，此举不但可能有碍美国经济，事实上还可能对国家安全有害。