In the first 36 hours after the Israeli offensive against Gaza started, Hamas militants fired only 150 rockets, some with a range of about 22 miles, toward Israeli towns. That is below their capacity of up to 200 a day, an estimate by Israeli military sources. "They are keeping their heads down," says a senior military intelligence officer. "Their accuracy is very low right now because of the dense aerial presence by Israeli planes. They know that the chances that they are being spotted by Israel surveillance and intelligence forces is very high." The officer adds, "The clear skies above...