This is one of those things that gets discussed over and over, because, like various other illegal and hard to count activities, the guilty parties aren`t talking. Here`s a useful chart of the various estimates from the Christian Science Monitor
. [Illegal immigrants in the US: How many are there?
By Brad Knickerbocker,May 16, 2006]
I kind of like the Bear Stearns estimate.
]But hey, a million here, a million there...
[See D. A. King`s estimate of 20 million illegals here.