Here's an intriguing development.
Israeli intelligence has come to the conclusion that it was a Hamas cell, and not an Egypt-based Global Jihad organization, that shot off the six rockets from Sinai that landed on Aqaba and Eilat on Monday. Hamas was also responsible, it appears, for a rocket attack launched from Sinai on April 22.
"It is clear to us beyond any doubt that in both incidents a cell of Hamas’s military wing in Gaza surreptitiously fired the missiles,” Israeli PM Bibi Netanyahu said. “I want to be clear: Using the territory of a third country — a peaceful one — in order to launch missiles against Israel won’t help Hamas escape responsibility. Whoever shoots at Israeli citizens, and it doesn't matter from where, we will find them and hit them hard.”
Egypt, which initially said the rockets couldn't have been fired from Sinai, is now backing the Israeli assessment, and has publicly placed Hamas on notice. A security source quoted by the official Egyptian news agency Ashraq Al-Awsat said, "Egypt would not agree, under any circumstances, that any party use its territories to harm Egyptian interests." Hamas is denying any connection to the rocket attacks and blaming Islamic Jihad, which is denying it too.
If Hamas really was behind the attacks from Sinai, it might have overreached. Egypt has never concerned itself overmuch with the flow of smuggled goods and arms from Sinai into Gaza. But if Hamas has decided to use Sinai as a base for terrorist operations, essentially colonizing Egyptian territory for its own interests, it might have pushed Egypt too far. Egypt now has a greater incentive not only to take a closer look at the smuggling tunnels but also to police its long border with Israel; up to now, its fencing and surveillance systems (such as they are) have been restricted to the border with the Gaza Strip.
Of course, it might be wishful thinking to hope that Egypt will be prodded by this embarrassment to inhibit arms flow into Gaza. In truth, it'll probably take more than two rocket attacks on Israelis and Jordanians to get Egypt to do anything. Still, I'd expect Hamas to keep its operations on its own territory, at least for the time being.