Well I'm not as "well rounded" about these things as I probably should be but... I've heard that in the State of California one is able to "close" their credit. Meaning that you have enough credit, want no more issued. This, in effect, prevents "identity theft" from happening. This option is available in certain States although I'm not sure which others besides the Golden State. In any case, I wonder, if I closed my "credit" would Delta still be able to "run" a check. Anyone?