What are some aspects to examine when determining potential vulnerabilities at airports? What are some important considerations when assessing boundaries and access points at airports? Identify at least three facilities that may be present on an airport. Explain and detail how these facilities have different security concerns when considering their locations on the airport. Outline some of the key elements of airside features that should be considered when designing or modifying airside facilities. Outline some of the key elements of landside features that should be considered when designing or modifying landside facilities