From American Chronicle :

"Okay, while I'm not saying that there aren't positive aspects to this idea, there are a couple of things, however, that don't quite jibe right when you look a good look at this.

Horizon vice-president and chief medical officer Dr. Richard Popiel confirmed the project was being conducted for the next two years to gauge whether or not to expand the program,

yet neither Horizon nor VeriChip Corporation, the manufacturer of the chips and detection equipment, make any mention of the project on their websites.

What's more, Hackensack University Medical Center already have the detection equipment, as they are part of VeriChip's development program.

Don't know about you, but I almost don't want to know about what other kinds of tests have been going on."
http://www.americanchronicle.com/articles/viewArticle.asp?articleID=11561