I have trouble believing that, and I'll tell you why. At that rate we would see 100,000 x 52 weeks = 5.2 million illegals per year.
That's a pretty big number. I went over to census.gov and found a report that tells me that there are about 35 million Hispanics in the country, about 20 million of whom are Mexicans. Let's agree that they haven't counted them all, but that we can use these numbers to get a sense of the scale of the numbers we're working with.
Ten years ago, there were 22 million Hispanics, of whom about 13 million were Mexican. So the number of Mexicans we know about went from 13 million to 20 million in ten years, or about 700,000 per year.
Your number would suggest that the illegals alone are coming in at the rate of 5 million a year. That just doesn't make any sense. If we really had added 50 million Mexicans to our population in the last ten years, we would have noticed. They'd be over 25% of the population. Add in the Puerto Ricans, the Cubans, and other Hispanics, and our population would be one-third Hispanic. Well, it's not.
I know people like to throw around big numbers and stuff, but at some point we have to run a sanity check. The claim of 100,000 per week does not pass the sanity check.
I live about 30 miles from the Mexican border, so you don't have to tell me that there are people coming across. At any given time, there are about 7,000 of them living in shanty towns in the canyons around here. I just don't see the utility in exaggerating things to the point of not being believeable.
As for the Arabs and the trucks, I think we all know that the drug cartels are bringing in tons of heroin, cocaine, and other goodies every month. If they can get all that in, then the Atta Boys can certainly sneak in a suitcase nuke or two. It just seems to me that the words "close the borders" must be a lot easier to say than to do.