When ask Palestinian ask for Right of Return, they are asking based on International Law. You know the same law Israel uses to bash Iran everyday or sanction them. You know the same USA talks about everyday. The same law that allowed Germany to be returned to Germans not to Russia or USA. You cannot just take out a law when it is convinent. Israeli leaders do that all the time--Bibi uses Oslo when it works for him but it does not, he says he personally destroyed Oslo back in the day.
Suspected Islamist militants attack Mali UN base, several dead (Reuters)