For better or worse, official US immigration policy is not geared towards this sort of social selection, and whatever the policy may be, the country cannot control the illegal influx over its southern border.

• 然而，不管是好是坏，反正美国官方的移民政策不与这类社会选择挂钩，而且，不管政策如何，美国控制不住从她南部边界涌入的大量非法移民。