I suspect that for every one we hear about there are no telling how many more our government isn't telling (us) the public about. Could the number of terrorists coming across our in-secure southern border be in the dozens?! Maybe even more?!
My same thoughts, according to *most* in our gov't, our borders are secure.
If you notice most of these border terrorists stories are investigated & then released by the media's.
Any response, to these occurrences from gov't is usually the standard "no comment".
3 years since 9-11.
1 per month = 36.
10 per month = 360.
100 per month = 3,600.
100 per month = 3 per day
3 per day... coming in somewhere across the entire Canadian and Mexican border, every international airport, and every seaport...
This is needle-in-a-haystack stuff. Not a pleasant thought.