Israel says it will exercise its right of self-defense in a more severe manner than before, now that it has withdrawn from Gaza to the international border. “As the famous song by Bob Dylan says, ‘The times they are a changin,’’ government spokesman Ra'anan Gissin told Israel Television. Hamas got the message and declared that it is ending rocket attacks. “We call on our military groups to stop their operations against the enemy from the Gaza Strip," said Hamas leader Mahmoud Zahar. But so far, Islamic Jihad and other terror groups have not followed suit. Several rockets and mortars were fired today at Israel, causing no casualties. Israel says it will continue raids until the rocket attacks stop.