"Pay attention to the author- Robert Rector
He knows this subject backward and forward. He's very credible on TV too."
He may very well be. I just think the number of illegals he starts off with is probably closer to 20 million than 10.
Just one of the many sources in this piece.
"The Tucson sector Border Patrol union local 2544 on the number of illegal aliens in our nation: "There are currently 15 to 20 million illegal aliens in this country by many estimates, but the real numbers could be much higher and the numbers increase every day because our borders are not secure (no matter what the politicians tell you - don't believe them for a second)".
http://www.theamericanresistance.com/ref/illegal_alien_numbers.html
I saw Robert Rector on Lou Dobbs show and he said 10 million illegal aliens was what they used to make their extrapolations (calculations) but that 20 million illegals (Bear Stearns estimate) was very very possible. He admitted 10 million was low ball number