If you hike in an area like they did where there are unruly Arab villages, then you should be carrying a weapon like most tour guides who travel in these places do. This tour guide who survived should have known better. Most places in Israel are safe enough where you don't need a weapon. Also, Israel is NOT a terror state.
Four Libyan soldiers said killed in battle with Islamists in Benghazi (Reuters)
from the article: Body of U.S. tourist found near Jerusalem; police suspect terror attack