If I recall correctly it is where drugs were flown to.
...and arms and select military were flown out of to Central America.
As I recall Mena Airport in Arkansas was the location of the joint CIA operation (CIA head George H.W.Bush) and Arkansas Gov.Bill Clinton. It involved smuggling weapons to the Contras in exchange for payments in illicit drugs. Barry Seal, the legendary pilot flew many missions.
Roger Stone among other authors wrote a book about this.
It’s airport was where Clinton had drugs dropped off, but also 2 young kids, early teens, were killed because it was believed they saw too much.