cards. I have several slot cards from the Riverside casino in Laughlin. One has "A-STC" after the name, one has "EMP", another has "TOURN" and one has "SR/BINGO". I think I have figured out the last two, but what does the "A-STC" AND "EMP" represent? Is the "EMP" for employee and if so why would they have a card from the casino where they work? I didn't think they could play in the casino where they work. Any ideas??