An internal comustion engine has an air induction system that provides an intake passage and an intake silencer, wherein there are a plurality of openings between the silencer and the intake passage. The intelligent network comprises the ability to receive an ATM VNET call at an ATM switch associated with a service node of the intelligent network, translate the dialed VNET number and then extend the call to a correct termination. The facility enhances situational awareness by projecting overlays onto captured video data or \u201cwrapping\u201d captured image data with previously-captured andor \u201csynthetic world\u201d information, such as satellite images, computer-generated images, wire models, textured surfaces, and so on. The method further includes determining a plurality of first index values.