Originally Posted by Dr. Sam Beckett
Well even in the 3rd movie there was a slight mention of Nublar. "So wait there are two islands with dinosaurs on them?"
I dont see any reason why Nublar would be dismantled yet let "Site B" just decay. The animals were lysine contingent, there isn't anything you can cover up by destroying the island. I mean come on. That park had to have had hundreds of employees, building contractors, genetic engineers, share holders - and plus your CLONING DINOSAURS - the public is going to know about it.
Destroying the island would be a waste of money.
And there is no such thing as a Costa Rican Air Force.
Essentially, the Costa Rican government was concerned about disease from the dinosaurs spreading the human population (not to mention the dinosaurs themselves escaping the island) and scaring off tourists and hurting their economy. They didn't want to rely on the lysene contingency, so they took matters into their own hands (and yes the Costa Rican Air Force was a bit of a creative liberty on Crichton's part). The reason Site B was left to decay was that it's existence was a closely guarded corporate secret and it is implied that even the C.R. government was unaware of the facility's existence (or at least unaware that there were dinosaurs on the island). In other words, if we assume that the bombing of Nublar is canon (I like to think that it is) then you have to understand that the fictional Costa Rican Air Force would have bombed Sorna as well if they knew it was there.