A few months ago Lou Dobbs refered to DHS and their figure. There were 3.6 MILLION Visa overstays that they cannot find and under 100 agents in the entire country looking for them.The head of USIS has testified before congress that their agencies cannot handle another guest worker program.
www.cnn.com/lou/transcripts
Right and those were trackable aliens but they're here to stay because the government refuses to enforce the law. Imagine a new guest worker program ten times bigger than the current one, it'll be a nightmare.