<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by skofarrell:
I don't understand your concern. Since 9/11, all domestic US flights are now PPBM.
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No. As a result of 9/11 all domestic bags are EITHER screened OR subject to PPBM. Unfortunately, PPBM only applies to the first leg of an itinerary, so a scenario such as a deliberate misconnect or throwaway will result in a seperation anyway.