RE: Analysis from a JHU CS Prof

["Mathias Körber" <mathias () koerber org>]

| Many really small regional airports allow you to board without 
| going through
| metal detectors/bag x-rays. Once you get off the plane at the
| destination(larger airport) you're behind the "secure" zone, and can also
| board another flight without going through one.

Which is why many international Airports (Narita, HKG) make you go through security again
when switching planes. I don't think Changi (Singapore, where I live) does though.. They
have shared de-planing/boarding areas. I guess that will change...