It's been a problem LONG before 2008, Bush 1, and further back then that!
It's just that the numbers are finally running up to a point that can no longer be brushed aside.
When you have people DEMANDING they all get a 'Get out of Jail Free" Card?
You have a problem.
Now about those Canadians!
I could never figure out why people in a warm place with all the Jobs the U.S. Gov is sending them would still come North.
But those Suspect people Up North are not much of a problem?