With Rocket Launches at Sderot, Hamas Shows It Makes the Rules

The next few days following Barack Obama's Israel visit will tell whether the cease-fire between Israel and Gaza militants is holding.

The question of who exactly launched the four rockets at the Sderot area Thursday morning is almost irrelevant. In the four months since Operation Pillar of Defense, Hamas has proved its ability to control the Gaza Strip and enforce the cease-fire on itself and the smaller militant factions. Even if Hamas didn't launch the rockets - and a little-known Salafi group has already claimed responsbility -  we have...