What do you believe is the single most important factor driving up the cost of living in Nigeria?

Amman, Jordan - David Ben-Gurion, Israel’s first prime minister, believed that the memory of the Nakba, or "catastrophe", would eventually fade for the hundreds of thousands of Palestinians violently expelled from their homeland by Zionist militias in 1948.

In 1949, a year after the State of Israel was created, he is reported to have said: "The old will die and the young will forget."

It's a prediction that amuses Omer Ihsan Yaseen, an erudite 20-year-old optician and third-generation Palestinian refugee living in Jordan's capital, Amman.

"We will return, I am sure of that," he says firmly as he points at a thick iron key that once opened the heavy-set doors to his grandparents' stone house in Salamah, five kilometres east of Jaffa, now part of Tel Aviv in Israel.

The key takes pride of place in a homemade shrine-like display dedicated to Palestinian identity that hangs on the wall of his family-run optician, next to a display of designer sunglasses and spectacles.

• Read More