So - check the names on the pax list. Good idea. Pity about the US citizen (real name David Francis Bieber) on the run from a murder rap who killed a cop in Leeds the other week whilst using a US passport in the name of Nathan Wayne Coleman. And do they really issue visas/waivers to people who are on the TSA watch lists?
Garbage in, garbage out is one thing - but putting even good information into a dysfunctional processing system does not produce good results. And putting more information in to the machine will not improve the quality of output. There is a serious problem with giving a bureaucracy all it wants..
On a lighter note, I'm beginning to think that The Authorities have gone back to the source of Western civilisation for answers - consulting the auguries. Before setting out on a voyage the Romans would have a priest kill a chicken and examine its guts for clues to predict success or failure. It was a go/no go matter.