Barring defence airports, bonafide passengers are permitted to take photographs for non-commercial usage &mdash anywhere. Now and then somebody will object, just keep the relevant DGCA (Directorate General of Civil Aviation) circular handy. On board, on the tarmac, inside and outside terminals, in the sky. But in these unsafe days and nights, with aviation incidents being reported every day, the camera as a tool to help you stay alive Absolutely. Safety has many faces, but they can all be recorded, and no better tool than a camera.