All a terrorist needs to hijack a plane is three seconds. As soon as the pilot opens the cockpit door, one could potentially just rush through to the controls. But it could just take a secondary barrier to add precious seconds and save lives.
More » 
Source: http://feeds.gawker.com/~r/gizmodo/full/~3/fX-3bifkvyA/how-this-barrier-method-could-help-stop-a-hijacking
INFOCUS ZORAN ZIONS BAN YAHOO
