Don't take this the wrong way but I don't think they have a model to stop terrorism.
They have dozens of trained psychologists to spot people displaying the trademarks of someone about to pull off a terrorist attack they don't expect to walk away alive from.
Racial profiling (to be politically incorrect) is also much easier in an Israeli airport than in an Arab one.
I don't know if there's another army or intelligence community in the world with as much hands on experience and focus with terrorism like the Israeli security team. These people have been dealing hands on with terrorism since their army days. How many terrorists do you think the average TSA official has come into contact with?