It was found in a locked office, in a storage cabinet, here at JFK's Terminal 1, by a contractor stringing cable. A MAC-11 machine pistol. No ammo, the Port Authority says. And outside of the secure zone. But still, how it got here and who left it is cause for concern - and investigation, by the Port Authority police. And it's leaving many passengers I interviewed for 1010 WINS more than a bit concerned.