A Palestinian girl looks out from a bus window as she waits with her family, hoping to cross into Egypt, at the Rafah crossing between Egypt and the southern Gaza Strip on January 21, 2014. Egyptian authorities partially opened Rafah Crossing, Gaza's main window to the world, for three days for humanitarian cases and stranded students, border officials said. Photo by Abed Rahim Khatib / Flash90

A Palestinian family waiting to cross into Egypt, at the Rafah border crossing between Egypt and the southern Gaza Strip on January 21, 2014. Egyptian authorities partially opened Rafah Crossing, Gaza's main window to the world, for three days for humanitarian cases and stranded students, border officials said. Photo by Abed Rahim Khatib / Flash90

Palestinians wait, hoping to cross into Egypt, at the Rafah border crossing between Egypt and the southern Gaza Strip on January 21, 2014. Egyptian authorities partially opened Rafah Crossing, Gaza's main window to the world, for three days for humanitarian cases and stranded students, border officials said. Photo by Abed Rahim Khatib / Flash90

Palestinians wait, hoping to cross into Egypt, at the Rafah border crossing between Egypt and the southern Gaza Strip on January 21, 2014. Egyptian authorities partially opened Rafah Crossing, Gaza's main window to the world, for three days for humanitarian cases and stranded students, border officials said. Photo by Abed Rahim Khatib / Flash90 *** Local Caption *** רפיח עזה גזה פלסטיני פלשתיני פלסטינ