'After the Nazis invaded France in May 1940, he fled Paris by bicycle, with Pontecorvo and others. Regrettably, Selya provides only a brief sketch of this dramatic escape to the south of France, through Spain to Portugal, where he was finally granted US immigration papers. She notes that the drama included being shot at from planes and hiding in an abandoned farmhouse with the Italian writer Carlo Levi. From Lisbon, Luria travelled in a ship packed with refugees, reaching New York City on 12 September, with US$52 in his pocket.'