Think it can't happen? What if the missing jetliner is cleared of its passengers after landing in hostile territory (they can use the passengers for ransom later), RE-PAINTED to look exactly like an El-Al Israeli jetliner or Arkia Israeli Airlines) , loaded with a bomb or toxic chemicals and flown (low under radar) to Tel Aviv or another highly populated Israeli city and purposely crashed.  IT would be the start of WW III.

 

Rene