Southern Barrier, Part 3
There are some parts of The Wall which are in three layers. It
was discovered that illegal aliens and drug smugglers would crash
even ten cars through the fence at one time and force a path.
To stop this the US Border Patrol installed a triple barrier.
First there is the steel barrier above, then a climb proof fence
and then a last defense of 20 ft high concrete posts pounded deep
into the ground.
45 degree flat anti-climb plate at the top of the "Bollard"
barrier is the last protection provided along this part of the
Tijuana is just to the south -- to the right --
of this barrier.
The violence of Tijuana, Mexico often sends AK-47
rifle fire over the border and into U.S. Border Patrol vehicles.
To limit the mayhem, many Border Patrol vehicles used in dangerous
areas -- even a quarter mile north of the border -- are fully