These Passenger Stability Indicators Include : Social Security Number, Length-of-Residence, Income, and Home Ownership. Two Additional Elements If Available Would Likely Be Good Indicators: Namely, Miles Flown Annually and Lifetime. "Homeland Security - Airline Passenger Risk Assessment" Torchconcepts.com ------- Would unplanned urban construction just before the '04 elections help or hurt Bush? Our machines are thrashing on the national-coherency vs. impotency-realization mass-psysim code.