""How does Israel control what Egypt allows?""

Had you removed your head from its normal repository and followed the link I posted you would have learned something.

The Israeli built fence controls the whole land border of Gaza and on the Egyptian side consists of a steel and concrete wall.

Entry into the Gaza Strip by land is through five crossing points: the northern Erez Crossing into Israel, the southern Rafah Crossing into Egypt, and the eastern Karni Crossing used only for cargo. Other cargo crossing points are the Kerem Shalom Crossing on the border with Egypt and the Sufa Crossing farther north.

On 22 January 2008 after Israel imposed a total closure on all crossings to the Gaza Strip, a group of Hamas demonstrators attempted to force open the door of the Rafah Crossing. They were beaten back by Egyptian police and gunfire erupted. That same night Hamas militants set off 15 explosive charges, demolishing a 200-metre length of the metal border wall. After the resulting Breach of the Gaza-Egypt border, many thousands of Palestinians, with estimates ranging from 200,000 to 700,000, crossed into Egypt to buy goods. Palestinians were seen purchasing food, fuel, cigarettes, shoes, furniture, car parts, and generators.

No mention of them trying to obtain anything dangerous, unless they planned to use the generators to give the Israelis electric shocks.

And perhaps you can explain, Keith, how the Israelis managed to close that border they don't control, hhmmmmnnn?

Don T.