He is probably packing a pistol and definately has body armor on. he is surrounded by body guards who are armed to the teeth with Uzis and all sorts of nice goodies, and they are well trained and alert. When he meets with Yasser, IF he meets with Yasser, its a bonifide fact that Yasser will not have his weapon. If he did, there would be no meet. So, in that moment, when and IF a meet takes place, the two leaders will sit unarmed with nothing more than their arguments on how to settle this crap. Body guards,on the other hand,will be staring down their adversaries with hands at the ready to draw down in a split second. Because of this, their maybe good reason NOT to meet, because the temperature is too hot, and an excuse to shoot is too easy.
But as he travels, he is well protected from most trouble. God forbid any harm come to him on this visit. The middle east , if at fault, would never live it down, and more than likely our military would be envolved in settling all this, which at times seems to be just what the Arabs want,---------another target.