very unlikely
simple story from the French point of view.
France has put chicanes (zigzag) on a road between Spain and France. This main highway was used by Go Fast drug smugglers.
This was put in place to give the police a chance to look inside the cars as they pass, and to break down speed.
What happened ?
France was fined by EU.
Reason ? The Schengen Treaty states that you MUST be able to cross borders at speeds in excess of 20MPH (30Km/h roughly)
Now, the border tightening is a joke. It's only PR nothing more.
Stronger border control is only blocking those who do not pose a threat.
Borders have never prevented criminals to come through.
Think of your Mexico/USA border. You, americans, have very strict immigration laws, you have very efficient Border Patrols, and CBP sure do their jobs. You've got a wall.
How many illegal immigrants do you have ?
Now you need to understand that Europe is not the USA
I live in the north of France. Actually I'm less than 5 miles from Belgium. (which has been a rear base for the terrorists last week)
What is the border like ?
It's a city street. No, don't think it's a street where you drive through a gate. Up the road is one country, down the road is another.
No, Belgium is on the right hand side of the road, and France is on the left hand side of the road. And that street is miles long. And such streets are all over the border line.
So to cross from one country to another, you just need to cross the road. (2 lanes city street).
How do you tighten that ?
we even have houses where the house itself in one country, and the garden is in another country
how do you control that ?