Allegedly aimed at busting visa abusers and illegal migrants, a Thai police operation called "X-Ray Outlaw Foreigner" has raised questions about racial profiling and fears for asylum-seekers caught in its web.Tens of millions of tourists come to Thailand each year for the cheap living and postcard-perfect beaches, with some seeking out the seedier thrills of a bustling sex industry.But as weak law enforcement, porous borders and corruption help make the country a hub for transnation