Oh, no. Did this guy swim the Rio Grande?
That's not the point, and I think you know it.
There was a time when foreigners in this country had to have visas for whatever reason they were here and they had to register each January with Immigration just to let them know where they were and what they were doing. When someone didn't register in January and there was no record of them leaving the country, the INS would track them down and deport them.
Somewhere along the line, the INS stopped doing its job and tracking the activity of foreigners in this country. This is partly what lead to 9/11 and the prevailing belief that another attack, possibly more deadly, is in our future.
The DHS isn't doing its job, the INS isn't doing its job and Americans are vulnerable to terrorist attack as a result.