On January 23, a series of explosions ripped open the concrete and steel barrier that had sealed off the Gaza Strip from the outside world. The breach in the barrier allowed hundreds of thousands of desperate Palestinians, perhaps a third of Gaza’s 1.5 million residents, to surge into the Egyptian cross-border town of Rafah to buy some of life’s basic necessities — denied them by Israel’s siege of the 10 kilometre wide, 40-kilometre long Palestinian enclave.