Curious what the criteria are for which airports to show at a given zoom level. At the default for me it showed SFO and SAN, both green, and did not show LAX.

Curious what the criteria are for which airports to show at a given zoom level. At the default for me it showed SFO and SAN, both green, and did not show LAX. LAX is a bigger and busier airport than SFO and SAN. I'm not saying they were wrong not to show it. Just curious - It was apparently a common interview question - what place names should you show a map at a certain zoom level.