What makes you think they have not made the connection and are not coming here on a regular basis? Due to sponsors of terrorism willing to pay I would say they would pay top dollar, hire the very best guides and likely not get caught.
I have firmly believed for years they are doing this. I hear stories about illegals that don’t speak Spanish or very little Spanish traveling through. I may be wrong but I actually would be very shocked if they are not doing this.
What makes me think that is the mass murders we experience are tied to home grown lunatics and not jihadis. With this country’s penchant for “gun free zones” a ripe harvest awaits them. So why don’t they massacre a grade school every week?