A large explosive went off - harmlessly - this morning in the home of a naval officer on Rashi St. in Raanana. The bomb was made up of a pressurized fire extinguisher and a cellular phone, and was somehow placed in the Colonel\'s home. He noticed it in time and called police sappers. A bomb exploded this morning inside an Egged bus parked near the Erez Checkpoint at the northern end of the Gaza Strip. No one was hurt, but several buses parked nearby were damaged.