Self-professed alien abductee Whitley Strieber apparently still hasn't completely removed his implant, because back on the 5th he (or someone else writing for his site) offered "Why Putting Up a Fence Won't Work" (via this). It doesn't probe the subject in depth, offering only a couple quotes from some unknown newspaper article.

One of those quoted is "Attorney Margaret Wong, who founded the largest immigration law firm in Ohio". Presumably she has a monetary motive in this case. And, the other person quoted is Daniel Griswold of the CATO institute.