the UN it's ok to kill and shoot people a couple at a time, but totally unacceptable if its done in mass. So when Israel assassinates someone, fire off a rocket. When it kills two or three unarmed Palestinians, fire off two or three rockets. That way you won't get in trouble. Israel has been doing this for quite some time and nothing has happened to them.
Law expanding definition of terrorist activity passes first Knesset reading (Haaretz)