My guess is that Bush landed at Offut Air Base which is no where near Westroads Mall. I grew up near Omaha and lived there for 10 years.
Offut is the site of the Strategic Air Command. TONS of security there...don’t worry!
It was SAC HQ, but SAC hasn't existed since the time of George Bush I. It's the HQ of US Strategic command. The Doomsday Birds fly/flew from there, Various sorts "special" 135 type aircraft as well.
I was assigned there for 1.5 years as a reservist when I was in grad school in Lincoln. Ran out of gas right outside the gate (was driving wifes car) on the day I reported, not a good start.
I've also been in the SAC underground command post, once with my student IEEE group and once as an AFROTC cadet. Had both my pre-ROTC admission and pre-commissioning physicals at the base hospital there. The first one had to be rescheduled because of a blizzard.