Egypt has reportedly sent Israel a letter of protest over its military takeover of the Rafah crossing and the Philadelphi buffer zone in southern Gaza. An Egyptian source, who spoke with The New Arab’s sister site Al-Araby Al-Jadeed, warned that Israel’s actions and intransigence could prompt Egypt to reconsider its role in mediating Gaza negotiations in the coming period. Cairo also called on Israel to abide by agreements, including those regarding the Rafah border crossing and the Philadelphi corridor, also known as the Salah al-Din corridor, a buffer zone along the Egyptian border with Gaza…