Get the plane on the ground. Let the authorities deal with the hijackers. As in a mugging, the thing you don't want to do is grab the pistol out of the mugger's hand. Give the mugger your wallet. In a hijacking the proper thing to do is sit tight and not challenge the hijackers.
When you're dealing with a disparate host of terrorist foes over time, as the Israelis have confronted, then it has less effect.
We are now dealing with many little al-Qaidas with the potential of neighborhood al-Qaidas. They may not be able to carry out specialized operations ... but they can still operate at a lethal level.