<div dir="ltr"><div>I wrote about the 9/11 scenario in Halachah here:</div>
<div> </div>
<div><a href="http://bariveshema.blogspot.com/2006/10/911-scenario-in-halachah.html">http://bariveshema.blogspot.com/2006/10/911-scenario-in-halachah.html</a></div>
<div> </div>
<div>In terms of the passive Rodef angle, there was a debate about this between the author of "Mishnas Pikuach Nefesh" and the author of "B'chol Nafshecha". The latter author convincingly asserted:</div>
<div>"There is no greater "he is beinf pursued by heaven" than this. Even if a Rodef B'oness is a Rodef, that is only if he has some possibility of preventing it, but here when they were taken hostage against their will and they have no way or possibility of preventing it, how can they be considered Rodfim? It is worse than someone who is being thrown from the rooftop, where he has some possibility of preventing it, only he get killed then, but here where he had no possibility of preventing it, it is precisely 'Mishmaya ka M'radfei Lah". </div>
<div> </div>
<div>In a later letter he elaborates:</div>
<div>"The simple scenario of a Rodef is one who is chasing after his fellow to kill him; there is a Chiddush that even if he is not literally chasing after him, so long as his body is endangering his friend, he is also considered a Rodef as per the Rambam regarding a fetus where we need to employ the rule of Mishmaya etc. Similar to this is one being thrown off the roof, where his body is endangering his friend's life. All this is irrelevant in the case of the plane where the passengers are doing no act of Redifah at all, and their bodies are not endangering the tower, but the danger is only from the plane itself and the terrorists in it, and there is no significance to the passengers. It is also not comparable to Yichaduhu, since there the danger to all the inhabitants is due to him, but here the danger is not because of the passengers at all. All this is simple."</div>
<div> </div>
<div>(He goes on to refute a tzushtell the former author made to a Maharashdam, where someone was refusing to throw his baggage overboard to save the ship.)</div></div>