If you will take the time to read Illegal Aliens:Counting the Uncountable by James H. Walsh who is an immigration expert, former Federal prosecutor, U. S. German Marshall Fund scholar, you will discover as he has through extensive research that in 2005 there were 36 million illegals and 2 million visa overstays for a total of 38 million.
His research uses on site interviews with border guards and many others in the field and is viewed by many as a conservative look at the problem.
I can go on if you like but you should be getting it by now.
Perhaps Sherman Logan would prefer to read Bear Sterns study (The Underground Labor Force Is Rising To The Surface by Robert Justich and Betty Ng, CFA) published in January 2005:
“The number of illegal immigrants in the United States may be as high as 20 million people, more than double the official 9 million people estimated by the Census Bureau.
Undocumented immigrants are gaining a larger share of the job market, and hold approximately 12 to 15 million jobs in the United States (8% of the employed)
Four to six million jobs have shifted to the underground market, as small businesses take advantage of the vulnerability of illegal residents.
The total number of legalized immigrants entering The United States since 1990 has averaged 962,000 per year. Several credible studies indicate that the number of illegal entries has recently crept up to 3 million per year, triple the authorized figure.”