India, May 4 -- Every once in a way, we hear of an individual being stopped at the airport, just as they are about to board an international flight. We hear that the airport authorities recognised the individual through a "look-out circular" that had been issued by the government and were thus able to prevent him from leaving the country (perhaps never to return). While all this has the elements of a thriller, there is also a problem. Look-out circulars, or LOCs, are issued through an opaque process, under doubtful legal authority, and the individual concerned doesn't even know about their existence - or has a chance to challenge them - until they are stopped at the airport....