The fence is plenty high. You just have to implant pace makers in the security folks to keep them awake.
I was thinking of those gadgets that used to be marketed to long-haul truck drivers, that clip on your ear and emit a loud beep if your head tilts forward. Some sort of implanted cattle prod does sound more up-to-date, though.
Who cares about the aircraft when we need to be more concerned about keeping the Illegal Immigrant-in-Chief behind bars?