The Associated Press: Officials: Israel to begin outfitting airliners with anti-missile systems within weeks
Talkback
Title:#6 Paul Wood
Name:Axel
City: State: Germany
"The simple way to eliminate this threat for countries is to refuse Israeli jets entering their countries airspace."

Of course, very simple and much easier than refusing the terrirists enter their countries with missiles or terrorist produce missiles in these countries.

I would suggest to bar the british public from entering the London Underground rater than preventing the terrirsts to enter there and harm the passengers.