By Nidal al-Mughrabi CAIRO (Reuters) – With Israeli bombs pounding the length of the Gaza Strip, Gazans have been squeezed up against the border with Egypt’s Sinai Peninsula at the town of Rafah and say they have practically nowhere left to flee. Hundreds of thousands have been displaced from their homes and as the bombardment comes closer again many fear the only option to keep them alive is exile to Sinai. But they don’t want that. They say if that happened, they might never come back. “There’s no safe place anymore. Now the Israeli ground offensive might expand to here,” said Umm Osama, a 5…