"they could be a threat to Israeli planes, if they try flying into Syrian air space." That violates international law. Obviously Israel doesn't think that it applies to them. If Israel keeps pissing off the rest of the world like this, they will be turned into the Trinitite state on the tip of a new Russian-built Sunburn missle. I won't shed a tear. Jews like Sharon give Jews like me a bad name.
Gunmen in Egypt kill guard outside Niger embassy (Reuters)
from the article: Sharon: Russian missiles being sold to Syria do threaten Israel